/usr/bin/java -Xmx8000000000 -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-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 22:09:48,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 22:09:48,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 22:09:48,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-09 22:09:48,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-09 22:09:48,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-09 22:09:48,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-09 22:09:48,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-09 22:09:48,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-09 22:09:48,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-09 22:09:48,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-09 22:09:48,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-09 22:09:48,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 22:09:48,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 22:09:48,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 22:09:48,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 22:09:48,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 22:09:48,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 22:09:48,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 22:09:48,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 22:09:48,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 22:09:48,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 22:09:48,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 22:09:48,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 22:09:48,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-09 22:09:48,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-09 22:09:48,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-09 22:09:48,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-09 22:09:48,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-09 22:09:48,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-09 22:09:48,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-09 22:09:48,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-09 22:09:48,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-09 22:09:48,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-09 22:09:48,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-09 22:09:48,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-09 22:09:48,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-09 22:09:48,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-09 22:09:48,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 22:09:48,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 22:09:48,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 22:09:48,303 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-Delay.epf [2021-07-09 22:09:48,332 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 22:09:48,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 22:09:48,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 22:09:48,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 22:09:48,334 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 22:09:48,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 22:09:48,335 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 22:09:48,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 22:09:48,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 22:09:48,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 22:09:48,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 22:09:48,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 22:09:48,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 22:09:48,336 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 22:09:48,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 22:09:48,336 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 22:09:48,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 22:09:48,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 22:09:48,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 22:09:48,337 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 22:09:48,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 22:09:48,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 22:09:48,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 22:09:48,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 22:09:48,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 22:09:48,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 22:09:48,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 22:09:48,338 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 22:09:48,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 22:09:48,347 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-09 22:09:48,348 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 22:09:48,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 22:09:48,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 22:09:48,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 22:09:48,632 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 22:09:48,633 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 22:09:48,633 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i [2021-07-09 22:09:48,684 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8efd23030/337be5ce99914dc38d543b717dad08c4/FLAGa1d533fdc [2021-07-09 22:09:49,042 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 22:09:49,042 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i [2021-07-09 22:09:49,050 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8efd23030/337be5ce99914dc38d543b717dad08c4/FLAGa1d533fdc [2021-07-09 22:09:49,061 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8efd23030/337be5ce99914dc38d543b717dad08c4 [2021-07-09 22:09:49,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 22:09:49,063 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 22:09:49,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 22:09:49,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 22:09:49,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 22:09:49,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 10:09:49" (1/1) ... [2021-07-09 22:09:49,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a9acd82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:49, skipping insertion in model container [2021-07-09 22:09:49,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 10:09:49" (1/1) ... [2021-07-09 22:09:49,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 22:09:49,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 22:09:49,238 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/safe006_pso.opt.i[949,962] [2021-07-09 22:09:49,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 22:09:49,313 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 22:09:49,320 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/safe006_pso.opt.i[949,962] [2021-07-09 22:09:49,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 22:09:49,361 INFO L208 MainTranslator]: Completed translation [2021-07-09 22:09:49,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:49 WrapperNode [2021-07-09 22:09:49,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 22:09:49,362 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 22:09:49,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 22:09:49,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 22:09:49,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:49" (1/1) ... [2021-07-09 22:09:49,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:49" (1/1) ... [2021-07-09 22:09:49,387 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 22:09:49,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 22:09:49,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 22:09:49,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 22:09:49,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:49" (1/1) ... [2021-07-09 22:09:49,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:49" (1/1) ... [2021-07-09 22:09:49,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:49" (1/1) ... [2021-07-09 22:09:49,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:49" (1/1) ... [2021-07-09 22:09:49,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:49" (1/1) ... [2021-07-09 22:09:49,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:49" (1/1) ... [2021-07-09 22:09:49,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:49" (1/1) ... [2021-07-09 22:09:49,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 22:09:49,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 22:09:49,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 22:09:49,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 22:09:49,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:49" (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 [2021-07-09 22:09:49,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 22:09:49,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 22:09:49,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 22:09:49,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 22:09:49,459 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-09 22:09:49,459 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-09 22:09:49,459 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-09 22:09:49,459 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-09 22:09:49,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 22:09:49,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 22:09:49,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 22:09:49,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 22:09:49,461 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 22:09:49,774 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 22:09:49,774 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-09 22:09:49,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 10:09:49 BoogieIcfgContainer [2021-07-09 22:09:49,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 22:09:49,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 22:09:49,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 22:09:49,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 22:09:49,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 10:09:49" (1/3) ... [2021-07-09 22:09:49,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2467f298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 10:09:49, skipping insertion in model container [2021-07-09 22:09:49,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:49" (2/3) ... [2021-07-09 22:09:49,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2467f298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 10:09:49, skipping insertion in model container [2021-07-09 22:09:49,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 10:09:49" (3/3) ... [2021-07-09 22:09:49,781 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_pso.opt.i [2021-07-09 22:09:49,784 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 22:09:49,785 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 22:09:49,785 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 22:09:49,785 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 22:09:49,801 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,801 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,801 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,802 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,802 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,802 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,802 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,802 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,802 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,802 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,803 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,803 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,803 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,803 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,803 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,803 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,803 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,803 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,803 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,804 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,804 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,804 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,804 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,804 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,805 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,806 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,806 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,806 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,809 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,809 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,809 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,810 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:49,811 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 22:09:49,825 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-07-09 22:09:49,837 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 22:09:49,837 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 22:09:49,837 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 22:09:49,837 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 22:09:49,837 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 22:09:49,837 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 22:09:49,837 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 22:09:49,838 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 22:09:49,974 INFO L276 IsEmpty]: Start isEmpty. Operand has 805 states, 693 states have (on average 1.6911976911976911) internal successors, (1172), 804 states have internal predecessors, (1172), 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) [2021-07-09 22:09:49,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-07-09 22:09:49,989 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:09:49,990 INFO L508 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] [2021-07-09 22:09:49,990 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:09:49,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:09:49,995 INFO L82 PathProgramCache]: Analyzing trace with hash -593502858, now seen corresponding path program 1 times [2021-07-09 22:09:50,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:09:50,002 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186037121] [2021-07-09 22:09:50,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:09:50,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:09:50,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:50,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:09:50,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:50,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:09:50,205 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-07-09 22:09:50,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:50,217 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:09:50,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:09:50,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:50,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:50,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:50,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:50,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:50,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:09:50,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:09:50,267 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:09:50,267 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186037121] [2021-07-09 22:09:50,267 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186037121] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:09:50,267 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:09:50,267 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:09:50,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724333837] [2021-07-09 22:09:50,269 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:09:50,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:09:50,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:09:50,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:09:50,279 INFO L87 Difference]: Start difference. First operand has 805 states, 693 states have (on average 1.6911976911976911) internal successors, (1172), 804 states have internal predecessors, (1172), 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 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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) [2021-07-09 22:09:50,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:09:50,458 INFO L93 Difference]: Finished difference Result 917 states and 1343 transitions. [2021-07-09 22:09:50,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 22:09:50,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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 41 [2021-07-09 22:09:50,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:09:50,474 INFO L225 Difference]: With dead ends: 917 [2021-07-09 22:09:50,475 INFO L226 Difference]: Without dead ends: 370 [2021-07-09 22:09:50,476 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 149.3ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-09 22:09:50,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-07-09 22:09:50,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2021-07-09 22:09:50,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 365 states have (on average 1.7205479452054795) internal successors, (628), 369 states have internal predecessors, (628), 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) [2021-07-09 22:09:50,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 628 transitions. [2021-07-09 22:09:50,517 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 628 transitions. Word has length 41 [2021-07-09 22:09:50,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:09:50,518 INFO L482 AbstractCegarLoop]: Abstraction has 370 states and 628 transitions. [2021-07-09 22:09:50,518 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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) [2021-07-09 22:09:50,518 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 628 transitions. [2021-07-09 22:09:50,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-07-09 22:09:50,519 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:09:50,519 INFO L508 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] [2021-07-09 22:09:50,519 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 22:09:50,520 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:09:50,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:09:50,520 INFO L82 PathProgramCache]: Analyzing trace with hash 939667255, now seen corresponding path program 1 times [2021-07-09 22:09:50,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:09:50,521 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038258034] [2021-07-09 22:09:50,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:09:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:09:50,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:50,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:09:50,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:50,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:09:50,591 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-07-09 22:09:50,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:50,606 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:09:50,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:09:50,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:50,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:50,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:50,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:50,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:50,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:09:50,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:09:50,689 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:09:50,689 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038258034] [2021-07-09 22:09:50,689 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038258034] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:09:50,689 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:09:50,689 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:09:50,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447028960] [2021-07-09 22:09:50,693 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:09:50,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:09:50,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:09:50,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:09:50,693 INFO L87 Difference]: Start difference. First operand 370 states and 628 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-07-09 22:09:50,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:09:50,841 INFO L93 Difference]: Finished difference Result 410 states and 720 transitions. [2021-07-09 22:09:50,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 22:09:50,842 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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 43 [2021-07-09 22:09:50,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:09:50,843 INFO L225 Difference]: With dead ends: 410 [2021-07-09 22:09:50,843 INFO L226 Difference]: Without dead ends: 310 [2021-07-09 22:09:50,844 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 176.9ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-09 22:09:50,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-07-09 22:09:50,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2021-07-09 22:09:50,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 305 states have (on average 1.7442622950819673) internal successors, (532), 309 states have internal predecessors, (532), 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) [2021-07-09 22:09:50,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 532 transitions. [2021-07-09 22:09:50,862 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 532 transitions. Word has length 43 [2021-07-09 22:09:50,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:09:50,863 INFO L482 AbstractCegarLoop]: Abstraction has 310 states and 532 transitions. [2021-07-09 22:09:50,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-07-09 22:09:50,863 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 532 transitions. [2021-07-09 22:09:50,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-07-09 22:09:50,864 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:09:50,864 INFO L508 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] [2021-07-09 22:09:50,864 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 22:09:50,864 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:09:50,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:09:50,865 INFO L82 PathProgramCache]: Analyzing trace with hash -255621768, now seen corresponding path program 1 times [2021-07-09 22:09:50,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:09:50,865 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820763829] [2021-07-09 22:09:50,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:09:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:09:50,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:50,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:09:50,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:50,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:09:50,967 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-07-09 22:09:50,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:50,979 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:09:50,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:09:51,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:51,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:51,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:51,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:51,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:51,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:09:51,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:09:51,019 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:09:51,019 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820763829] [2021-07-09 22:09:51,019 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820763829] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:09:51,019 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:09:51,019 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:09:51,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660906370] [2021-07-09 22:09:51,020 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:09:51,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:09:51,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:09:51,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:09:51,021 INFO L87 Difference]: Start difference. First operand 310 states and 532 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2021-07-09 22:09:51,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:09:51,155 INFO L93 Difference]: Finished difference Result 448 states and 796 transitions. [2021-07-09 22:09:51,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 22:09:51,155 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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 45 [2021-07-09 22:09:51,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:09:51,156 INFO L225 Difference]: With dead ends: 448 [2021-07-09 22:09:51,156 INFO L226 Difference]: Without dead ends: 292 [2021-07-09 22:09:51,157 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 131.8ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 22:09:51,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-07-09 22:09:51,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2021-07-09 22:09:51,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.7073170731707317) internal successors, (490), 291 states have internal predecessors, (490), 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) [2021-07-09 22:09:51,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 490 transitions. [2021-07-09 22:09:51,163 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 490 transitions. Word has length 45 [2021-07-09 22:09:51,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:09:51,163 INFO L482 AbstractCegarLoop]: Abstraction has 292 states and 490 transitions. [2021-07-09 22:09:51,163 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2021-07-09 22:09:51,163 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 490 transitions. [2021-07-09 22:09:51,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 22:09:51,164 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:09:51,164 INFO L508 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] [2021-07-09 22:09:51,164 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 22:09:51,164 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:09:51,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:09:51,165 INFO L82 PathProgramCache]: Analyzing trace with hash -56614108, now seen corresponding path program 1 times [2021-07-09 22:09:51,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:09:51,165 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573187758] [2021-07-09 22:09:51,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:09:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:09:51,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:51,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:09:51,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:51,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:09:51,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:51,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:09:51,209 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:09:51,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:09:51,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:51,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:51,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:51,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:51,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:51,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:09:51,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:09:51,251 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:09:51,251 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573187758] [2021-07-09 22:09:51,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573187758] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:09:51,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:09:51,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:09:51,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667785711] [2021-07-09 22:09:51,254 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:09:51,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:09:51,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:09:51,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:09:51,254 INFO L87 Difference]: Start difference. First operand 292 states and 490 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-07-09 22:09:51,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:09:51,357 INFO L93 Difference]: Finished difference Result 366 states and 620 transitions. [2021-07-09 22:09:51,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 22:09:51,357 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-07-09 22:09:51,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:09:51,360 INFO L225 Difference]: With dead ends: 366 [2021-07-09 22:09:51,360 INFO L226 Difference]: Without dead ends: 248 [2021-07-09 22:09:51,360 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 107.1ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 22:09:51,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2021-07-09 22:09:51,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2021-07-09 22:09:51,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 244 states have (on average 1.709016393442623) internal successors, (417), 247 states have internal predecessors, (417), 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) [2021-07-09 22:09:51,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 417 transitions. [2021-07-09 22:09:51,365 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 417 transitions. Word has length 46 [2021-07-09 22:09:51,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:09:51,365 INFO L482 AbstractCegarLoop]: Abstraction has 248 states and 417 transitions. [2021-07-09 22:09:51,365 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-07-09 22:09:51,365 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 417 transitions. [2021-07-09 22:09:51,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 22:09:51,366 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:09:51,366 INFO L508 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] [2021-07-09 22:09:51,366 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 22:09:51,366 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:09:51,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:09:51,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1082274740, now seen corresponding path program 1 times [2021-07-09 22:09:51,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:09:51,367 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637662197] [2021-07-09 22:09:51,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:09:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:09:51,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:51,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:09:51,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:51,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:09:51,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:51,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:09:51,421 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:09:51,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:09:51,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:51,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:51,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:51,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:51,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:51,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:09:51,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:09:51,450 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:09:51,450 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637662197] [2021-07-09 22:09:51,450 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637662197] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:09:51,450 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:09:51,451 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:09:51,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510706958] [2021-07-09 22:09:51,451 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:09:51,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:09:51,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:09:51,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:09:51,452 INFO L87 Difference]: Start difference. First operand 248 states and 417 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-07-09 22:09:51,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:09:51,537 INFO L93 Difference]: Finished difference Result 216 states and 357 transitions. [2021-07-09 22:09:51,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 22:09:51,538 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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 46 [2021-07-09 22:09:51,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:09:51,538 INFO L225 Difference]: With dead ends: 216 [2021-07-09 22:09:51,538 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 22:09:51,538 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 94.7ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 22:09:51,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 22:09:51,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 22:09:51,539 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) [2021-07-09 22:09:51,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 22:09:51,539 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2021-07-09 22:09:51,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:09:51,539 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 22:09:51,539 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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) [2021-07-09 22:09:51,539 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 22:09:51,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 22:09:51,539 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 22:09:51,540 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 22:09:51,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 10:09:51 BasicIcfg [2021-07-09 22:09:51,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 22:09:51,542 INFO L168 Benchmark]: Toolchain (without parser) took 2478.85 ms. Allocated memory was 176.2 MB in the beginning and 218.1 MB in the end (delta: 41.9 MB). Free memory was 139.1 MB in the beginning and 77.4 MB in the end (delta: 61.7 MB). Peak memory consumption was 104.5 MB. Max. memory is 8.0 GB. [2021-07-09 22:09:51,543 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 176.2 MB. Free memory is still 157.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 22:09:51,543 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.58 ms. Allocated memory is still 176.2 MB. Free memory was 138.9 MB in the beginning and 149.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 12.9 MB. Max. memory is 8.0 GB. [2021-07-09 22:09:51,543 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.56 ms. Allocated memory is still 176.2 MB. Free memory was 149.5 MB in the beginning and 147.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 22:09:51,543 INFO L168 Benchmark]: Boogie Preprocessor took 12.72 ms. Allocated memory is still 176.2 MB. Free memory was 147.5 MB in the beginning and 146.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-09 22:09:51,544 INFO L168 Benchmark]: RCFGBuilder took 375.03 ms. Allocated memory is still 176.2 MB. Free memory was 146.4 MB in the beginning and 125.5 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-07-09 22:09:51,544 INFO L168 Benchmark]: TraceAbstraction took 1764.94 ms. Allocated memory was 176.2 MB in the beginning and 218.1 MB in the end (delta: 41.9 MB). Free memory was 124.9 MB in the beginning and 77.4 MB in the end (delta: 47.5 MB). Peak memory consumption was 89.5 MB. Max. memory is 8.0 GB. [2021-07-09 22:09:51,546 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 176.2 MB. Free memory is still 157.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 297.58 ms. Allocated memory is still 176.2 MB. Free memory was 138.9 MB in the beginning and 149.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 12.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 24.56 ms. Allocated memory is still 176.2 MB. Free memory was 149.5 MB in the beginning and 147.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.72 ms. Allocated memory is still 176.2 MB. Free memory was 147.5 MB in the beginning and 146.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 375.03 ms. Allocated memory is still 176.2 MB. Free memory was 146.4 MB in the beginning and 125.5 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1764.94 ms. Allocated memory was 176.2 MB in the beginning and 218.1 MB in the end (delta: 41.9 MB). Free memory was 124.9 MB in the beginning and 77.4 MB in the end (delta: 47.5 MB). Peak memory consumption was 89.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1538, positive: 1475, positive conditional: 1475, positive unconditional: 0, negative: 63, negative conditional: 63, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1527, positive: 1475, positive conditional: 0, positive unconditional: 1475, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 320, positive: 312, positive conditional: 0, positive unconditional: 312, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 320, positive: 311, positive conditional: 0, positive unconditional: 311, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 19, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1527, positive: 1163, positive conditional: 0, positive unconditional: 1163, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 320, unknown conditional: 0, unknown unconditional: 320] , Statistics on independence cache: Total cache size (in pairs): 320, Positive cache size: 312, Positive conditional cache size: 0, Positive unconditional cache size: 312, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Independence queries for same thread: 11 - 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 82 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1704.1ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 22.8ms, AutomataDifference: 686.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 132.5ms, PartialOrderReductionTime: 122.8ms, HoareTripleCheckerStatistics: 357 SDtfs, 457 SDslu, 1190 SDs, 0 SdLazy, 131 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 119.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 660.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=805occurred in iteration=0, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 61.8ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 22.7ms SsaConstructionTime, 93.8ms SatisfiabilityAnalysisTime, 581.8ms InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 818 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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...