/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-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 22:37:55,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 22:37:55,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 22:37:55,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 22:37:55,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 22:37:55,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 22:37:55,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 22:37:55,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 22:37:55,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 22:37:55,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 22:37:55,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 22:37:55,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 22:37:55,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 22:37:55,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 22:37:55,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 22:37:55,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 22:37:55,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 22:37:55,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 22:37:55,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 22:37:55,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 22:37:55,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 22:37:55,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 22:37:55,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 22:37:55,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 22:37:55,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 22:37:55,293 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 22:37:55,293 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 22:37:55,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 22:37:55,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 22:37:55,295 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 22:37:55,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 22:37:55,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 22:37:55,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 22:37:55,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 22:37:55,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 22:37:55,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 22:37:55,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 22:37:55,300 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 22:37:55,300 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 22:37:55,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 22:37:55,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 22:37:55,302 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-SemanticLbe.epf [2020-04-17 22:37:55,317 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 22:37:55,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 22:37:55,319 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 22:37:55,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 22:37:55,320 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 22:37:55,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 22:37:55,320 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 22:37:55,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 22:37:55,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 22:37:55,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 22:37:55,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 22:37:55,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 22:37:55,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 22:37:55,322 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 22:37:55,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 22:37:55,322 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 22:37:55,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 22:37:55,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 22:37:55,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 22:37:55,323 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 22:37:55,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 22:37:55,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 22:37:55,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 22:37:55,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 22:37:55,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 22:37:55,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 22:37:55,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 22:37:55,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 22:37:55,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 22:37:55,633 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 22:37:55,651 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 22:37:55,654 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 22:37:55,655 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 22:37:55,656 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 22:37:55,656 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_pso.opt.i [2020-04-17 22:37:55,742 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05572a088/8b77b2a85a944559a5991a173ea98f2a/FLAG3c84ce094 [2020-04-17 22:37:56,297 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 22:37:56,298 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_pso.opt.i [2020-04-17 22:37:56,317 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05572a088/8b77b2a85a944559a5991a173ea98f2a/FLAG3c84ce094 [2020-04-17 22:37:56,539 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05572a088/8b77b2a85a944559a5991a173ea98f2a [2020-04-17 22:37:56,550 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 22:37:56,567 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 22:37:56,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 22:37:56,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 22:37:56,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 22:37:56,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:37:56" (1/1) ... [2020-04-17 22:37:56,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56339182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:37:56, skipping insertion in model container [2020-04-17 22:37:56,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:37:56" (1/1) ... [2020-04-17 22:37:56,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 22:37:56,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 22:37:57,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:37:57,140 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 22:37:57,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:37:57,318 INFO L208 MainTranslator]: Completed translation [2020-04-17 22:37:57,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:37:57 WrapperNode [2020-04-17 22:37:57,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 22:37:57,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 22:37:57,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 22:37:57,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 22:37:57,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:37:57" (1/1) ... [2020-04-17 22:37:57,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:37:57" (1/1) ... [2020-04-17 22:37:57,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 22:37:57,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 22:37:57,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 22:37:57,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 22:37:57,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:37:57" (1/1) ... [2020-04-17 22:37:57,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:37:57" (1/1) ... [2020-04-17 22:37:57,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:37:57" (1/1) ... [2020-04-17 22:37:57,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:37:57" (1/1) ... [2020-04-17 22:37:57,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:37:57" (1/1) ... [2020-04-17 22:37:57,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:37:57" (1/1) ... [2020-04-17 22:37:57,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:37:57" (1/1) ... [2020-04-17 22:37:57,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 22:37:57,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 22:37:57,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 22:37:57,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 22:37:57,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:37:57" (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 [2020-04-17 22:37:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 22:37:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 22:37:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 22:37:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 22:37:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 22:37:57,465 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 22:37:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 22:37:57,466 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 22:37:57,466 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-17 22:37:57,466 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-17 22:37:57,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 22:37:57,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 22:37:57,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 22:37:57,468 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 22:37:57,892 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 22:37:57,893 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 22:37:57,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:37:57 BoogieIcfgContainer [2020-04-17 22:37:57,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 22:37:57,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 22:37:57,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 22:37:57,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 22:37:57,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 10:37:56" (1/3) ... [2020-04-17 22:37:57,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ffa39e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:37:57, skipping insertion in model container [2020-04-17 22:37:57,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:37:57" (2/3) ... [2020-04-17 22:37:57,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ffa39e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:37:57, skipping insertion in model container [2020-04-17 22:37:57,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:37:57" (3/3) ... [2020-04-17 22:37:57,908 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_pso.opt.i [2020-04-17 22:37:57,918 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 22:37:57,918 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 22:37:57,925 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 22:37:57,926 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 22:37:57,952 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,952 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,953 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,953 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,954 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,954 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,955 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,955 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,955 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,955 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,956 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,956 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,957 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,957 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,957 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,957 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,958 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,958 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,962 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,963 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,963 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,963 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,969 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,970 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,970 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,970 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,973 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,973 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,973 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,974 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:37:57,992 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-17 22:37:58,009 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 22:37:58,009 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 22:37:58,009 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 22:37:58,009 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 22:37:58,009 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 22:37:58,010 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 22:37:58,010 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 22:37:58,010 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 22:37:58,025 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-04-17 22:37:58,028 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-04-17 22:37:58,068 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-04-17 22:37:58,069 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:37:58,075 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 22:37:58,078 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-04-17 22:37:58,099 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-04-17 22:37:58,100 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:37:58,101 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 22:37:58,103 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-17 22:37:58,106 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 22:37:59,551 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-04-17 22:37:59,663 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2315 [2020-04-17 22:37:59,663 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-04-17 22:37:59,667 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-04-17 22:37:59,699 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-04-17 22:37:59,702 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-04-17 22:37:59,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-17 22:37:59,710 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:37:59,711 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:37:59,711 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:37:59,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:37:59,718 INFO L82 PathProgramCache]: Analyzing trace with hash 385809968, now seen corresponding path program 1 times [2020-04-17 22:37:59,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:37:59,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592443027] [2020-04-17 22:37:59,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:37:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:37:59,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:37:59,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592443027] [2020-04-17 22:37:59,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:37:59,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:37:59,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043158406] [2020-04-17 22:37:59,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-17 22:37:59,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:37:59,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-17 22:37:59,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-17 22:37:59,946 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-04-17 22:37:59,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:37:59,983 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-04-17 22:37:59,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-17 22:37:59,985 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-04-17 22:37:59,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:38:00,006 INFO L225 Difference]: With dead ends: 362 [2020-04-17 22:38:00,007 INFO L226 Difference]: Without dead ends: 298 [2020-04-17 22:38:00,009 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-17 22:38:00,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-04-17 22:38:00,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-04-17 22:38:00,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-04-17 22:38:00,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-04-17 22:38:00,097 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-04-17 22:38:00,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:38:00,098 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-04-17 22:38:00,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-17 22:38:00,098 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-04-17 22:38:00,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-17 22:38:00,100 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:38:00,100 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:38:00,100 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:38:00,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:38:00,101 INFO L82 PathProgramCache]: Analyzing trace with hash -924796273, now seen corresponding path program 1 times [2020-04-17 22:38:00,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:38:00,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086857509] [2020-04-17 22:38:00,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:38:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:38:00,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:38:00,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086857509] [2020-04-17 22:38:00,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:38:00,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:38:00,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177137624] [2020-04-17 22:38:00,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 22:38:00,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:38:00,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 22:38:00,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:38:00,236 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-04-17 22:38:00,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:38:00,253 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-04-17 22:38:00,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 22:38:00,254 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-04-17 22:38:00,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:38:00,257 INFO L225 Difference]: With dead ends: 217 [2020-04-17 22:38:00,257 INFO L226 Difference]: Without dead ends: 217 [2020-04-17 22:38:00,258 INFO L678 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 [2020-04-17 22:38:00,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-04-17 22:38:00,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-04-17 22:38:00,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-04-17 22:38:00,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-04-17 22:38:00,276 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-04-17 22:38:00,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:38:00,276 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-04-17 22:38:00,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 22:38:00,276 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-04-17 22:38:00,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 22:38:00,278 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:38:00,278 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:38:00,279 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:38:00,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:38:00,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1123394358, now seen corresponding path program 1 times [2020-04-17 22:38:00,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:38:00,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156595657] [2020-04-17 22:38:00,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:38:00,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:38:00,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:38:00,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156595657] [2020-04-17 22:38:00,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:38:00,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:38:00,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484310235] [2020-04-17 22:38:00,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:38:00,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:38:00,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:38:00,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:38:00,378 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-04-17 22:38:00,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:38:00,402 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-04-17 22:38:00,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:38:00,403 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-17 22:38:00,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:38:00,405 INFO L225 Difference]: With dead ends: 136 [2020-04-17 22:38:00,405 INFO L226 Difference]: Without dead ends: 136 [2020-04-17 22:38:00,405 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:38:00,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-04-17 22:38:00,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-04-17 22:38:00,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-04-17 22:38:00,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-04-17 22:38:00,413 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-04-17 22:38:00,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:38:00,414 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-04-17 22:38:00,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:38:00,414 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-04-17 22:38:00,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-17 22:38:00,416 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:38:00,416 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:38:00,416 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:38:00,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:38:00,417 INFO L82 PathProgramCache]: Analyzing trace with hash -104701845, now seen corresponding path program 1 times [2020-04-17 22:38:00,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:38:00,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573866786] [2020-04-17 22:38:00,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:38:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:38:00,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:38:00,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573866786] [2020-04-17 22:38:00,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:38:00,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 22:38:00,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850797396] [2020-04-17 22:38:00,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:38:00,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:38:00,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:38:00,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:38:00,486 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-04-17 22:38:00,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:38:00,520 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-04-17 22:38:00,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:38:00,520 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-04-17 22:38:00,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:38:00,521 INFO L225 Difference]: With dead ends: 109 [2020-04-17 22:38:00,521 INFO L226 Difference]: Without dead ends: 109 [2020-04-17 22:38:00,522 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:38:00,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-04-17 22:38:00,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-04-17 22:38:00,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-04-17 22:38:00,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-04-17 22:38:00,527 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-04-17 22:38:00,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:38:00,528 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-04-17 22:38:00,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:38:00,528 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-04-17 22:38:00,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-17 22:38:00,529 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:38:00,530 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:38:00,530 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:38:00,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:38:00,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1786856379, now seen corresponding path program 1 times [2020-04-17 22:38:00,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:38:00,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472929344] [2020-04-17 22:38:00,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:38:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:38:00,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:38:00,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472929344] [2020-04-17 22:38:00,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:38:00,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 22:38:00,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148798592] [2020-04-17 22:38:00,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:38:00,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:38:00,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:38:00,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:38:00,627 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-04-17 22:38:00,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:38:00,664 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-04-17 22:38:00,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:38:00,665 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-04-17 22:38:00,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:38:00,666 INFO L225 Difference]: With dead ends: 135 [2020-04-17 22:38:00,666 INFO L226 Difference]: Without dead ends: 85 [2020-04-17 22:38:00,666 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-17 22:38:00,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-04-17 22:38:00,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-04-17 22:38:00,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-04-17 22:38:00,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-04-17 22:38:00,671 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-04-17 22:38:00,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:38:00,671 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-04-17 22:38:00,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:38:00,672 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-04-17 22:38:00,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-17 22:38:00,673 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:38:00,673 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:38:00,673 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:38:00,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:38:00,674 INFO L82 PathProgramCache]: Analyzing trace with hash -739037833, now seen corresponding path program 2 times [2020-04-17 22:38:00,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:38:00,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698434696] [2020-04-17 22:38:00,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:38:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:38:00,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:38:00,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698434696] [2020-04-17 22:38:00,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:38:00,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 22:38:00,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516762205] [2020-04-17 22:38:00,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:38:00,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:38:00,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:38:00,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:38:00,765 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 5 states. [2020-04-17 22:38:00,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:38:00,808 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-04-17 22:38:00,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:38:00,808 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-04-17 22:38:00,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:38:00,809 INFO L225 Difference]: With dead ends: 99 [2020-04-17 22:38:00,809 INFO L226 Difference]: Without dead ends: 37 [2020-04-17 22:38:00,810 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-17 22:38:00,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-04-17 22:38:00,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-04-17 22:38:00,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-04-17 22:38:00,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-04-17 22:38:00,814 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-04-17 22:38:00,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:38:00,814 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-04-17 22:38:00,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:38:00,814 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-04-17 22:38:00,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-17 22:38:00,815 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:38:00,815 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:38:00,815 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:38:00,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:38:00,816 INFO L82 PathProgramCache]: Analyzing trace with hash 21041593, now seen corresponding path program 3 times [2020-04-17 22:38:00,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:38:00,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392771026] [2020-04-17 22:38:00,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:38:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:38:00,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:38:00,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392771026] [2020-04-17 22:38:00,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:38:00,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 22:38:00,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019138346] [2020-04-17 22:38:00,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:38:00,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:38:00,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:38:00,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:38:00,910 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-04-17 22:38:00,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:38:00,944 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-04-17 22:38:00,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:38:00,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-04-17 22:38:00,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:38:00,945 INFO L225 Difference]: With dead ends: 36 [2020-04-17 22:38:00,945 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 22:38:00,946 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-17 22:38:00,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 22:38:00,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 22:38:00,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 22:38:00,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 22:38:00,947 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-04-17 22:38:00,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:38:00,947 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 22:38:00,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:38:00,947 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 22:38:00,948 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 22:38:00,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 10:38:00 BasicIcfg [2020-04-17 22:38:00,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 22:38:00,954 INFO L168 Benchmark]: Toolchain (without parser) took 4402.17 ms. Allocated memory was 136.3 MB in the beginning and 253.2 MB in the end (delta: 116.9 MB). Free memory was 99.0 MB in the beginning and 106.6 MB in the end (delta: -7.6 MB). Peak memory consumption was 109.3 MB. Max. memory is 7.1 GB. [2020-04-17 22:38:00,955 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 136.3 MB. Free memory is still 118.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-04-17 22:38:00,956 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.53 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 97.2 MB in the beginning and 154.3 MB in the end (delta: -57.1 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-04-17 22:38:00,957 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.30 ms. Allocated memory is still 200.3 MB. Free memory was 154.3 MB in the beginning and 152.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-17 22:38:00,957 INFO L168 Benchmark]: Boogie Preprocessor took 28.92 ms. Allocated memory is still 200.3 MB. Free memory was 152.2 MB in the beginning and 151.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. [2020-04-17 22:38:00,958 INFO L168 Benchmark]: RCFGBuilder took 493.09 ms. Allocated memory is still 200.3 MB. Free memory was 151.1 MB in the beginning and 128.5 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-04-17 22:38:00,959 INFO L168 Benchmark]: TraceAbstraction took 3051.46 ms. Allocated memory was 200.3 MB in the beginning and 253.2 MB in the end (delta: 53.0 MB). Free memory was 128.5 MB in the beginning and 106.6 MB in the end (delta: 21.9 MB). Peak memory consumption was 74.8 MB. Max. memory is 7.1 GB. [2020-04-17 22:38:00,963 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 136.3 MB. Free memory is still 118.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 750.53 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 97.2 MB in the beginning and 154.3 MB in the end (delta: -57.1 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.30 ms. Allocated memory is still 200.3 MB. Free memory was 154.3 MB in the beginning and 152.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.92 ms. Allocated memory is still 200.3 MB. Free memory was 152.2 MB in the beginning and 151.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 493.09 ms. Allocated memory is still 200.3 MB. Free memory was 151.1 MB in the beginning and 128.5 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3051.46 ms. Allocated memory was 200.3 MB in the beginning and 253.2 MB in the end (delta: 53.0 MB). Free memory was 128.5 MB in the beginning and 106.6 MB in the end (delta: 21.9 MB). Peak memory consumption was 74.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 663 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2315 CheckedPairsTotal, 57 TotalNumberOfCompositions - 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 139 SDtfs, 90 SDslu, 214 SDs, 0 SdLazy, 58 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3389 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...