/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 10:06:46,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 10:06:46,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 10:06:46,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 10:06:46,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 10:06:46,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 10:06:46,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 10:06:46,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 10:06:46,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 10:06:46,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 10:06:46,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 10:06:46,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 10:06:46,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 10:06:46,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 10:06:46,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 10:06:46,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 10:06:46,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 10:06:46,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 10:06:46,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 10:06:46,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 10:06:46,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 10:06:46,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 10:06:46,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 10:06:46,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 10:06:46,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-05 10:06:46,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-05 10:06:46,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-05 10:06:46,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-05 10:06:46,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-05 10:06:46,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-05 10:06:46,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-05 10:06:46,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-05 10:06:46,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-05 10:06:46,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-05 10:06:46,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-05 10:06:46,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-05 10:06:46,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-05 10:06:46,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-05 10:06:46,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 10:06:46,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 10:06:46,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 10:06:46,352 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2021-06-05 10:06:46,372 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 10:06:46,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 10:06:46,373 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 10:06:46,373 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 10:06:46,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 10:06:46,375 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 10:06:46,375 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 10:06:46,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 10:06:46,375 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 10:06:46,375 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 10:06:46,376 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 10:06:46,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 10:06:46,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 10:06:46,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 10:06:46,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 10:06:46,377 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 10:06:46,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 10:06:46,377 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 10:06:46,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 10:06:46,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 10:06:46,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 10:06:46,378 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 10:06:46,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 10:06:46,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:06:46,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 10:06:46,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 10:06:46,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 10:06:46,379 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 10:06:46,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 10:06:46,379 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 10:06:46,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 10:06:46,380 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 10:06:46,380 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 10:06:46,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 10:06:46,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 10:06:46,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 10:06:46,740 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 10:06:46,741 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 10:06:46,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i [2021-06-05 10:06:46,808 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b24c8a84/30d4939e30634015be108746361bedc4/FLAG68b6a874b [2021-06-05 10:06:47,312 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 10:06:47,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i [2021-06-05 10:06:47,324 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b24c8a84/30d4939e30634015be108746361bedc4/FLAG68b6a874b [2021-06-05 10:06:47,637 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b24c8a84/30d4939e30634015be108746361bedc4 [2021-06-05 10:06:47,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 10:06:47,640 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 10:06:47,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 10:06:47,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 10:06:47,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 10:06:47,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:06:47" (1/1) ... [2021-06-05 10:06:47,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fdc8efa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:47, skipping insertion in model container [2021-06-05 10:06:47,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:06:47" (1/1) ... [2021-06-05 10:06:47,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 10:06:47,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 10:06:47,856 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i[949,962] [2021-06-05 10:06:48,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:06:48,036 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 10:06:48,046 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i[949,962] [2021-06-05 10:06:48,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:06:48,156 INFO L208 MainTranslator]: Completed translation [2021-06-05 10:06:48,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:48 WrapperNode [2021-06-05 10:06:48,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 10:06:48,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 10:06:48,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 10:06:48,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 10:06:48,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:48" (1/1) ... [2021-06-05 10:06:48,196 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:48" (1/1) ... [2021-06-05 10:06:48,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 10:06:48,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 10:06:48,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 10:06:48,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 10:06:48,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:48" (1/1) ... [2021-06-05 10:06:48,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:48" (1/1) ... [2021-06-05 10:06:48,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:48" (1/1) ... [2021-06-05 10:06:48,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:48" (1/1) ... [2021-06-05 10:06:48,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:48" (1/1) ... [2021-06-05 10:06:48,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:48" (1/1) ... [2021-06-05 10:06:48,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:48" (1/1) ... [2021-06-05 10:06:48,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 10:06:48,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 10:06:48,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 10:06:48,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 10:06:48,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:48" (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 [2021-06-05 10:06:48,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 10:06:48,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 10:06:48,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 10:06:48,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 10:06:48,312 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 10:06:48,313 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 10:06:48,313 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 10:06:48,313 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 10:06:48,314 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 10:06:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 10:06:48,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 10:06:48,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 10:06:48,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 10:06:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 10:06:48,316 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 10:06:48,738 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 10:06:48,738 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 10:06:48,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:06:48 BoogieIcfgContainer [2021-06-05 10:06:48,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 10:06:48,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 10:06:48,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 10:06:48,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 10:06:48,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 10:06:47" (1/3) ... [2021-06-05 10:06:48,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e2f2b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:06:48, skipping insertion in model container [2021-06-05 10:06:48,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:48" (2/3) ... [2021-06-05 10:06:48,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e2f2b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:06:48, skipping insertion in model container [2021-06-05 10:06:48,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:06:48" (3/3) ... [2021-06-05 10:06:48,750 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_pso.opt.i [2021-06-05 10:06:48,755 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 10:06:48,755 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 10:06:48,755 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 10:06:48,756 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 10:06:48,793 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,793 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,793 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,793 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,794 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,794 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,794 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,796 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,798 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,798 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,800 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,800 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,804 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,804 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,806 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,806 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,806 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,806 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,806 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,806 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,807 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,807 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,808 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,808 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,808 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,808 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,811 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,811 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,812 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,817 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,817 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,819 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,819 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,819 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,820 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:48,824 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:06:48,844 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 10:06:48,872 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:06:48,872 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:06:48,872 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:06:48,872 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:06:48,873 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:06:48,873 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:06:48,873 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:06:48,873 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:06:48,886 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-06-05 10:06:49,456 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:49,501 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:49,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-05 10:06:49,550 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:06:49,551 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:06:49,551 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:06:49,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:06:49,557 INFO L82 PathProgramCache]: Analyzing trace with hash 663437649, now seen corresponding path program 1 times [2021-06-05 10:06:49,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:06:49,564 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939296322] [2021-06-05 10:06:49,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:06:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:06:50,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:06:50,006 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:06:50,006 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939296322] [2021-06-05 10:06:50,007 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939296322] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:06:50,007 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:06:50,007 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:06:50,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8563631] [2021-06-05 10:06:50,010 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:06:50,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:06:50,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:06:50,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:06:50,049 INFO L87 Difference]: Start difference. First operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:50,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:06:50,576 INFO L93 Difference]: Finished difference Result 18268 states and 62923 transitions. [2021-06-05 10:06:50,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:06:50,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-06-05 10:06:50,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:06:50,640 INFO L225 Difference]: With dead ends: 18268 [2021-06-05 10:06:50,641 INFO L226 Difference]: Without dead ends: 6158 [2021-06-05 10:06:50,642 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 274.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:06:50,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6158 states. [2021-06-05 10:06:50,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6158 to 5228. [2021-06-05 10:06:51,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5228 states, 5227 states have (on average 3.365601683566099) internal successors, (17592), 5227 states have internal predecessors, (17592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:51,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5228 states to 5228 states and 17592 transitions. [2021-06-05 10:06:51,038 INFO L78 Accepts]: Start accepts. Automaton has 5228 states and 17592 transitions. Word has length 49 [2021-06-05 10:06:51,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:06:51,041 INFO L482 AbstractCegarLoop]: Abstraction has 5228 states and 17592 transitions. [2021-06-05 10:06:51,042 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:51,043 INFO L276 IsEmpty]: Start isEmpty. Operand 5228 states and 17592 transitions. [2021-06-05 10:06:51,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 10:06:51,058 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:06:51,058 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:06:51,058 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 10:06:51,058 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:06:51,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:06:51,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1915177392, now seen corresponding path program 1 times [2021-06-05 10:06:51,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:06:51,059 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707454182] [2021-06-05 10:06:51,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:06:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:06:51,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:06:51,199 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:06:51,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707454182] [2021-06-05 10:06:51,200 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707454182] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:06:51,200 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:06:51,200 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:06:51,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400212996] [2021-06-05 10:06:51,201 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:06:51,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:06:51,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:06:51,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:06:51,202 INFO L87 Difference]: Start difference. First operand 5228 states and 17592 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:51,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:06:51,515 INFO L93 Difference]: Finished difference Result 7108 states and 23681 transitions. [2021-06-05 10:06:51,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:06:51,516 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-05 10:06:51,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:06:51,537 INFO L225 Difference]: With dead ends: 7108 [2021-06-05 10:06:51,538 INFO L226 Difference]: Without dead ends: 3808 [2021-06-05 10:06:51,538 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 177.8ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:06:51,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3808 states. [2021-06-05 10:06:51,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3808 to 3808. [2021-06-05 10:06:51,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3808 states, 3807 states have (on average 3.264775413711584) internal successors, (12429), 3807 states have internal predecessors, (12429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:51,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 12429 transitions. [2021-06-05 10:06:51,649 INFO L78 Accepts]: Start accepts. Automaton has 3808 states and 12429 transitions. Word has length 51 [2021-06-05 10:06:51,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:06:51,649 INFO L482 AbstractCegarLoop]: Abstraction has 3808 states and 12429 transitions. [2021-06-05 10:06:51,649 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:51,650 INFO L276 IsEmpty]: Start isEmpty. Operand 3808 states and 12429 transitions. [2021-06-05 10:06:51,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 10:06:51,657 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:06:51,658 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:06:51,658 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 10:06:51,658 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:06:51,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:06:51,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1721389007, now seen corresponding path program 1 times [2021-06-05 10:06:51,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:06:51,659 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381617747] [2021-06-05 10:06:51,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:06:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:06:51,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:06:51,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:06:51,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381617747] [2021-06-05 10:06:51,789 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381617747] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:06:51,789 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:06:51,789 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:06:51,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807437263] [2021-06-05 10:06:51,790 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:06:51,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:06:51,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:06:51,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:06:51,821 INFO L87 Difference]: Start difference. First operand 3808 states and 12429 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:51,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:06:51,972 INFO L93 Difference]: Finished difference Result 4208 states and 13644 transitions. [2021-06-05 10:06:51,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:06:51,973 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-06-05 10:06:51,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:06:51,993 INFO L225 Difference]: With dead ends: 4208 [2021-06-05 10:06:51,994 INFO L226 Difference]: Without dead ends: 3508 [2021-06-05 10:06:51,994 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 112.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:06:52,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3508 states. [2021-06-05 10:06:52,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3508 to 3508. [2021-06-05 10:06:52,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3508 states, 3507 states have (on average 3.2360992301112064) internal successors, (11349), 3507 states have internal predecessors, (11349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:52,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3508 states to 3508 states and 11349 transitions. [2021-06-05 10:06:52,149 INFO L78 Accepts]: Start accepts. Automaton has 3508 states and 11349 transitions. Word has length 53 [2021-06-05 10:06:52,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:06:52,149 INFO L482 AbstractCegarLoop]: Abstraction has 3508 states and 11349 transitions. [2021-06-05 10:06:52,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:52,149 INFO L276 IsEmpty]: Start isEmpty. Operand 3508 states and 11349 transitions. [2021-06-05 10:06:52,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 10:06:52,157 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:06:52,157 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:06:52,157 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 10:06:52,157 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:06:52,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:06:52,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1467913996, now seen corresponding path program 1 times [2021-06-05 10:06:52,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:06:52,158 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232100556] [2021-06-05 10:06:52,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:06:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:06:52,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:06:52,246 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:06:52,246 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232100556] [2021-06-05 10:06:52,246 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232100556] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:06:52,247 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:06:52,247 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:06:52,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722777985] [2021-06-05 10:06:52,247 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:06:52,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:06:52,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:06:52,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:06:52,248 INFO L87 Difference]: Start difference. First operand 3508 states and 11349 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:52,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:06:52,440 INFO L93 Difference]: Finished difference Result 4978 states and 16025 transitions. [2021-06-05 10:06:52,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 10:06:52,441 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-06-05 10:06:52,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:06:52,456 INFO L225 Difference]: With dead ends: 4978 [2021-06-05 10:06:52,456 INFO L226 Difference]: Without dead ends: 2918 [2021-06-05 10:06:52,461 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 141.5ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:06:52,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2021-06-05 10:06:52,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 2918. [2021-06-05 10:06:52,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2918 states, 2917 states have (on average 3.1594103531025026) internal successors, (9216), 2917 states have internal predecessors, (9216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:52,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 9216 transitions. [2021-06-05 10:06:52,590 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 9216 transitions. Word has length 55 [2021-06-05 10:06:52,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:06:52,590 INFO L482 AbstractCegarLoop]: Abstraction has 2918 states and 9216 transitions. [2021-06-05 10:06:52,590 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:52,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 9216 transitions. [2021-06-05 10:06:52,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 10:06:52,597 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:06:52,597 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:06:52,597 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 10:06:52,597 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:06:52,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:06:52,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1232463540, now seen corresponding path program 1 times [2021-06-05 10:06:52,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:06:52,598 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357813145] [2021-06-05 10:06:52,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:06:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:06:52,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:06:52,701 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:06:52,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357813145] [2021-06-05 10:06:52,701 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357813145] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:06:52,701 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:06:52,701 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:06:52,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851128461] [2021-06-05 10:06:52,703 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:06:52,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:06:52,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:06:52,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:06:52,704 INFO L87 Difference]: Start difference. First operand 2918 states and 9216 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:52,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:06:52,881 INFO L93 Difference]: Finished difference Result 3326 states and 10370 transitions. [2021-06-05 10:06:52,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:06:52,881 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-06-05 10:06:52,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:06:52,887 INFO L225 Difference]: With dead ends: 3326 [2021-06-05 10:06:52,887 INFO L226 Difference]: Without dead ends: 1286 [2021-06-05 10:06:52,888 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 143.2ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:06:52,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2021-06-05 10:06:52,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1286. [2021-06-05 10:06:52,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 2.9867704280155642) internal successors, (3838), 1285 states have internal predecessors, (3838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:52,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 3838 transitions. [2021-06-05 10:06:52,926 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 3838 transitions. Word has length 56 [2021-06-05 10:06:52,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:06:52,926 INFO L482 AbstractCegarLoop]: Abstraction has 1286 states and 3838 transitions. [2021-06-05 10:06:52,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:52,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 3838 transitions. [2021-06-05 10:06:52,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 10:06:52,930 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:06:52,930 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:06:52,930 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 10:06:52,930 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:06:52,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:06:52,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1506580816, now seen corresponding path program 1 times [2021-06-05 10:06:52,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:06:52,931 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151008364] [2021-06-05 10:06:52,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:06:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:06:53,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:06:53,051 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:06:53,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151008364] [2021-06-05 10:06:53,051 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151008364] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:06:53,052 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:06:53,052 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:06:53,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015606818] [2021-06-05 10:06:53,052 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:06:53,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:06:53,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:06:53,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:06:53,053 INFO L87 Difference]: Start difference. First operand 1286 states and 3838 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:53,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:06:53,172 INFO L93 Difference]: Finished difference Result 1487 states and 4389 transitions. [2021-06-05 10:06:53,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:06:53,173 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-06-05 10:06:53,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:06:53,201 INFO L225 Difference]: With dead ends: 1487 [2021-06-05 10:06:53,201 INFO L226 Difference]: Without dead ends: 1151 [2021-06-05 10:06:53,204 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 93.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:06:53,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2021-06-05 10:06:53,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1151. [2021-06-05 10:06:53,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1151 states, 1150 states have (on average 2.946086956521739) internal successors, (3388), 1150 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:53,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 3388 transitions. [2021-06-05 10:06:53,234 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 3388 transitions. Word has length 57 [2021-06-05 10:06:53,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:06:53,235 INFO L482 AbstractCegarLoop]: Abstraction has 1151 states and 3388 transitions. [2021-06-05 10:06:53,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:53,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 3388 transitions. [2021-06-05 10:06:53,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 10:06:53,239 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:06:53,239 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:06:53,239 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 10:06:53,239 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:06:53,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:06:53,239 INFO L82 PathProgramCache]: Analyzing trace with hash -208209097, now seen corresponding path program 1 times [2021-06-05 10:06:53,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:06:53,240 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56857807] [2021-06-05 10:06:53,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:06:53,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:06:53,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:06:53,369 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:06:53,369 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56857807] [2021-06-05 10:06:53,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56857807] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:06:53,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:06:53,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:06:53,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356803988] [2021-06-05 10:06:53,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:06:53,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:06:53,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:06:53,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:06:53,370 INFO L87 Difference]: Start difference. First operand 1151 states and 3388 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:53,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:06:53,486 INFO L93 Difference]: Finished difference Result 1043 states and 2968 transitions. [2021-06-05 10:06:53,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:06:53,486 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-06-05 10:06:53,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:06:53,489 INFO L225 Difference]: With dead ends: 1043 [2021-06-05 10:06:53,489 INFO L226 Difference]: Without dead ends: 791 [2021-06-05 10:06:53,489 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 103.1ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:06:53,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2021-06-05 10:06:53,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 791. [2021-06-05 10:06:53,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 790 states have (on average 2.788607594936709) internal successors, (2203), 790 states have internal predecessors, (2203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:53,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 2203 transitions. [2021-06-05 10:06:53,508 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 2203 transitions. Word has length 58 [2021-06-05 10:06:53,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:06:53,508 INFO L482 AbstractCegarLoop]: Abstraction has 791 states and 2203 transitions. [2021-06-05 10:06:53,508 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:53,509 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 2203 transitions. [2021-06-05 10:06:53,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-05 10:06:53,510 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:06:53,510 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:06:53,510 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 10:06:53,511 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:06:53,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:06:53,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1710207794, now seen corresponding path program 1 times [2021-06-05 10:06:53,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:06:53,511 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762158190] [2021-06-05 10:06:53,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:06:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:06:53,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:06:53,640 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:06:53,640 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762158190] [2021-06-05 10:06:53,640 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762158190] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:06:53,640 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:06:53,640 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:06:53,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338102237] [2021-06-05 10:06:53,641 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:06:53,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:06:53,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:06:53,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:06:53,642 INFO L87 Difference]: Start difference. First operand 791 states and 2203 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:53,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:06:53,720 INFO L93 Difference]: Finished difference Result 494 states and 1312 transitions. [2021-06-05 10:06:53,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 10:06:53,721 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-06-05 10:06:53,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:06:53,721 INFO L225 Difference]: With dead ends: 494 [2021-06-05 10:06:53,721 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:06:53,723 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 94.2ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:06:53,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:06:53,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:06:53,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:53,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:06:53,724 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2021-06-05 10:06:53,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:06:53,724 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:06:53,724 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:53,724 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:06:53,724 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:06:53,724 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 10:06:53,726 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 10:06:53,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 10:06:53 BasicIcfg [2021-06-05 10:06:53,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 10:06:53,729 INFO L168 Benchmark]: Toolchain (without parser) took 6089.31 ms. Allocated memory was 373.3 MB in the beginning and 843.1 MB in the end (delta: 469.8 MB). Free memory was 335.6 MB in the beginning and 619.0 MB in the end (delta: -283.4 MB). Peak memory consumption was 186.5 MB. Max. memory is 16.0 GB. [2021-06-05 10:06:53,729 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 373.3 MB. Free memory is still 353.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:06:53,732 INFO L168 Benchmark]: CACSL2BoogieTranslator took 504.40 ms. Allocated memory is still 373.3 MB. Free memory was 335.4 MB in the beginning and 334.8 MB in the end (delta: 569.7 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:06:53,734 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.50 ms. Allocated memory is still 373.3 MB. Free memory was 334.8 MB in the beginning and 332.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:06:53,734 INFO L168 Benchmark]: Boogie Preprocessor took 26.57 ms. Allocated memory is still 373.3 MB. Free memory was 332.7 MB in the beginning and 331.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:06:53,735 INFO L168 Benchmark]: RCFGBuilder took 502.27 ms. Allocated memory is still 373.3 MB. Free memory was 331.6 MB in the beginning and 305.4 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:06:53,736 INFO L168 Benchmark]: TraceAbstraction took 4985.00 ms. Allocated memory was 373.3 MB in the beginning and 843.1 MB in the end (delta: 469.8 MB). Free memory was 304.4 MB in the beginning and 619.0 MB in the end (delta: -314.6 MB). Peak memory consumption was 156.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:06:53,741 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 373.3 MB. Free memory is still 353.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 504.40 ms. Allocated memory is still 373.3 MB. Free memory was 335.4 MB in the beginning and 334.8 MB in the end (delta: 569.7 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 53.50 ms. Allocated memory is still 373.3 MB. Free memory was 334.8 MB in the beginning and 332.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 26.57 ms. Allocated memory is still 373.3 MB. Free memory was 332.7 MB in the beginning and 331.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 502.27 ms. Allocated memory is still 373.3 MB. Free memory was 331.6 MB in the beginning and 305.4 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4985.00 ms. Allocated memory was 373.3 MB in the beginning and 843.1 MB in the end (delta: 469.8 MB). Free memory was 304.4 MB in the beginning and 619.0 MB in the end (delta: -314.6 MB). Peak memory consumption was 156.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4855.1ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 138.9ms, AutomataDifference: 1887.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 583.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 816 SDtfs, 1224 SDslu, 2775 SDs, 0 SdLazy, 313 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 343.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1140.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 801.5ms AutomataMinimizationTime, 8 MinimizatonAttempts, 930 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 29.2ms SsaConstructionTime, 181.6ms SatisfiabilityAnalysisTime, 972.2ms InterpolantComputationTime, 438 NumberOfCodeBlocks, 438 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 430 ConstructedInterpolants, 0 QuantifiedInterpolants, 1648 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...