/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:17:16,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:17:16,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:17:16,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:17:16,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:17:16,285 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:17:16,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:17:16,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:17:16,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:17:16,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:17:16,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:17:16,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:17:16,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:17:16,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:17:16,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:17:16,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:17:16,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:17:16,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:17:16,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:17:16,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:17:16,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:17:16,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:17:16,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:17:16,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:17:16,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 12:17:16,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:17:16,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:17:16,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:17:16,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:17:16,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:17:16,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:17:16,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:17:16,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:17:16,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:17:16,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:17:16,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:17:16,368 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-New_States.epf [2020-11-12 12:17:16,423 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:17:16,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:17:16,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:17:16,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:17:16,428 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:17:16,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:17:16,429 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:17:16,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:17:16,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:17:16,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:17:16,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:17:16,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:17:16,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:17:16,432 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:17:16,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:17:16,432 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:17:16,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:17:16,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:17:16,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:17:16,433 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:17:16,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:17:16,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:17:16,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:17:16,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:17:16,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:17:16,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:17:16,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:17:16,435 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:17:16,435 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:17:16,435 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:17:16,435 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:17:16,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:17:16,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:17:16,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:17:16,868 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:17:16,869 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:17:16,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i [2020-11-12 12:17:16,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/832adb091/a94e18eb707c4383a861d93fb0ad3926/FLAGe1c4565e4 [2020-11-12 12:17:17,657 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:17:17,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i [2020-11-12 12:17:17,679 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/832adb091/a94e18eb707c4383a861d93fb0ad3926/FLAGe1c4565e4 [2020-11-12 12:17:17,906 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/832adb091/a94e18eb707c4383a861d93fb0ad3926 [2020-11-12 12:17:17,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:17:17,925 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:17:17,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:17:17,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:17:17,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:17:17,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:17:17" (1/1) ... [2020-11-12 12:17:17,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57eb5239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:17, skipping insertion in model container [2020-11-12 12:17:17,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:17:17" (1/1) ... [2020-11-12 12:17:17,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:17:18,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:17:18,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:17:18,452 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:17:18,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:17:18,649 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:17:18,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:18 WrapperNode [2020-11-12 12:17:18,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:17:18,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:17:18,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:17:18,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:17:18,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:18" (1/1) ... [2020-11-12 12:17:18,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:18" (1/1) ... [2020-11-12 12:17:18,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:17:18,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:17:18,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:17:18,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:17:18,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:18" (1/1) ... [2020-11-12 12:17:18,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:18" (1/1) ... [2020-11-12 12:17:18,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:18" (1/1) ... [2020-11-12 12:17:18,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:18" (1/1) ... [2020-11-12 12:17:18,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:18" (1/1) ... [2020-11-12 12:17:18,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:18" (1/1) ... [2020-11-12 12:17:18,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:18" (1/1) ... [2020-11-12 12:17:18,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:17:18,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:17:18,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:17:18,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:17:18,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:17:18,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:17:18,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:17:18,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:17:18,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:17:18,834 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:17:18,834 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:17:18,834 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:17:18,834 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:17:18,834 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 12:17:18,834 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 12:17:18,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:17:18,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:17:18,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:17:18,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:17:18,837 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 12:17:19,382 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:17:19,383 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:17:19,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:17:19 BoogieIcfgContainer [2020-11-12 12:17:19,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:17:19,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:17:19,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:17:19,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:17:19,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:17:17" (1/3) ... [2020-11-12 12:17:19,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16589ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:17:19, skipping insertion in model container [2020-11-12 12:17:19,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:17:18" (2/3) ... [2020-11-12 12:17:19,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16589ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:17:19, skipping insertion in model container [2020-11-12 12:17:19,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:17:19" (3/3) ... [2020-11-12 12:17:19,395 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_tso.opt.i [2020-11-12 12:17:19,414 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:17:19,414 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:17:19,419 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:17:19,420 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:17:19,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,472 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,472 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,473 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,473 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,476 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,476 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,477 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,477 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,477 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,478 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,479 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,480 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,480 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,482 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,483 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,484 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,484 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,485 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,485 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,489 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,489 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,490 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,491 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,499 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,499 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,499 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,499 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,503 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,503 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,504 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,504 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:17:19,507 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:17:19,521 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 12:17:19,563 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:17:19,563 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:17:19,563 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:17:19,564 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:17:19,564 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:17:19,564 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:17:19,564 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:17:19,564 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:17:19,582 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 84 places, 77 transitions, 169 flow [2020-11-12 12:17:20,293 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8475 states, 8473 states have (on average 3.5872772335654433) internal successors, (30395), 8474 states have internal predecessors, (30395), 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) [2020-11-12 12:17:21,132 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 835ms [2020-11-12 12:17:21,161 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 8475 states, 8473 states have (on average 3.5872772335654433) internal successors, (30395), 8474 states have internal predecessors, (30395), 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) [2020-11-12 12:17:21,325 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 28879 states, 26380 states have (on average 1.1923426838514026) internal successors, (31454), 28878 states have internal predecessors, (31454), 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) [2020-11-12 12:17:21,360 INFO L276 IsEmpty]: Start isEmpty. Operand has 28879 states, 26380 states have (on average 1.1923426838514026) internal successors, (31454), 28878 states have internal predecessors, (31454), 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) [2020-11-12 12:17:21,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-12 12:17:21,385 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:17:21,386 INFO L494 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] [2020-11-12 12:17:21,386 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:17:21,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:17:21,393 INFO L82 PathProgramCache]: Analyzing trace with hash 161629245, now seen corresponding path program 1 times [2020-11-12 12:17:21,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:17:21,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527511735] [2020-11-12 12:17:21,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:17:21,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:17:21,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:17:21,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527511735] [2020-11-12 12:17:21,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:17:21,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:17:21,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145822455] [2020-11-12 12:17:21,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:17:21,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:17:21,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:17:21,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:17:21,913 INFO L87 Difference]: Start difference. First operand has 28879 states, 26380 states have (on average 1.1923426838514026) internal successors, (31454), 28878 states have internal predecessors, (31454), 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 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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) [2020-11-12 12:17:22,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:17:22,355 INFO L93 Difference]: Finished difference Result 12473 states and 14008 transitions. [2020-11-12 12:17:22,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:17:22,358 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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 [2020-11-12 12:17:22,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:17:22,402 INFO L225 Difference]: With dead ends: 12473 [2020-11-12 12:17:22,402 INFO L226 Difference]: Without dead ends: 4545 [2020-11-12 12:17:22,404 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:17:22,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4545 states. [2020-11-12 12:17:22,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4545 to 4545. [2020-11-12 12:17:22,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4545 states, 4293 states have (on average 1.3214535290006988) internal successors, (5673), 4544 states have internal predecessors, (5673), 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) [2020-11-12 12:17:22,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4545 states to 4545 states and 5673 transitions. [2020-11-12 12:17:22,658 INFO L78 Accepts]: Start accepts. Automaton has 4545 states and 5673 transitions. Word has length 41 [2020-11-12 12:17:22,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:17:22,658 INFO L481 AbstractCegarLoop]: Abstraction has 4545 states and 5673 transitions. [2020-11-12 12:17:22,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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) [2020-11-12 12:17:22,659 INFO L276 IsEmpty]: Start isEmpty. Operand 4545 states and 5673 transitions. [2020-11-12 12:17:22,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-12 12:17:22,702 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:17:22,702 INFO L494 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] [2020-11-12 12:17:22,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:17:22,703 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:17:22,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:17:22,704 INFO L82 PathProgramCache]: Analyzing trace with hash -2100618788, now seen corresponding path program 1 times [2020-11-12 12:17:22,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:17:22,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648089561] [2020-11-12 12:17:22,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:17:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:17:22,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:17:22,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648089561] [2020-11-12 12:17:22,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:17:22,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:17:22,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44400201] [2020-11-12 12:17:22,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:17:22,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:17:22,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:17:22,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:17:22,881 INFO L87 Difference]: Start difference. First operand 4545 states and 5673 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 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) [2020-11-12 12:17:23,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:17:23,062 INFO L93 Difference]: Finished difference Result 5009 states and 6133 transitions. [2020-11-12 12:17:23,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:17:23,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 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 [2020-11-12 12:17:23,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:17:23,082 INFO L225 Difference]: With dead ends: 5009 [2020-11-12 12:17:23,082 INFO L226 Difference]: Without dead ends: 3230 [2020-11-12 12:17:23,083 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:17:23,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2020-11-12 12:17:23,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 3230. [2020-11-12 12:17:23,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3230 states, 3050 states have (on average 1.2842622950819673) internal successors, (3917), 3229 states have internal predecessors, (3917), 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) [2020-11-12 12:17:23,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3230 states to 3230 states and 3917 transitions. [2020-11-12 12:17:23,201 INFO L78 Accepts]: Start accepts. Automaton has 3230 states and 3917 transitions. Word has length 43 [2020-11-12 12:17:23,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:17:23,201 INFO L481 AbstractCegarLoop]: Abstraction has 3230 states and 3917 transitions. [2020-11-12 12:17:23,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 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) [2020-11-12 12:17:23,201 INFO L276 IsEmpty]: Start isEmpty. Operand 3230 states and 3917 transitions. [2020-11-12 12:17:23,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 12:17:23,209 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:17:23,209 INFO L494 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] [2020-11-12 12:17:23,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:17:23,210 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:17:23,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:17:23,210 INFO L82 PathProgramCache]: Analyzing trace with hash -759115397, now seen corresponding path program 1 times [2020-11-12 12:17:23,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:17:23,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713613216] [2020-11-12 12:17:23,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:17:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:17:23,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:17:23,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713613216] [2020-11-12 12:17:23,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:17:23,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:17:23,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403246533] [2020-11-12 12:17:23,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:17:23,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:17:23,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:17:23,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:17:23,413 INFO L87 Difference]: Start difference. First operand 3230 states and 3917 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) [2020-11-12 12:17:23,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:17:23,547 INFO L93 Difference]: Finished difference Result 5485 states and 6724 transitions. [2020-11-12 12:17:23,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:17:23,548 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 [2020-11-12 12:17:23,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:17:23,564 INFO L225 Difference]: With dead ends: 5485 [2020-11-12 12:17:23,565 INFO L226 Difference]: Without dead ends: 3093 [2020-11-12 12:17:23,565 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:17:23,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3093 states. [2020-11-12 12:17:23,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3093 to 3093. [2020-11-12 12:17:23,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3093 states, 2913 states have (on average 1.2832131822863029) internal successors, (3738), 3092 states have internal predecessors, (3738), 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) [2020-11-12 12:17:23,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3093 states to 3093 states and 3738 transitions. [2020-11-12 12:17:23,647 INFO L78 Accepts]: Start accepts. Automaton has 3093 states and 3738 transitions. Word has length 45 [2020-11-12 12:17:23,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:17:23,648 INFO L481 AbstractCegarLoop]: Abstraction has 3093 states and 3738 transitions. [2020-11-12 12:17:23,648 INFO L482 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) [2020-11-12 12:17:23,648 INFO L276 IsEmpty]: Start isEmpty. Operand 3093 states and 3738 transitions. [2020-11-12 12:17:23,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 12:17:23,654 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:17:23,654 INFO L494 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] [2020-11-12 12:17:23,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:17:23,655 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:17:23,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:17:23,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1088726909, now seen corresponding path program 2 times [2020-11-12 12:17:23,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:17:23,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099762349] [2020-11-12 12:17:23,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:17:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:17:23,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:17:23,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099762349] [2020-11-12 12:17:23,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:17:23,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:17:23,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879878696] [2020-11-12 12:17:23,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:17:23,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:17:23,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:17:23,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:17:23,773 INFO L87 Difference]: Start difference. First operand 3093 states and 3738 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 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) [2020-11-12 12:17:23,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:17:23,905 INFO L93 Difference]: Finished difference Result 3329 states and 3950 transitions. [2020-11-12 12:17:23,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:17:23,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 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 [2020-11-12 12:17:23,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:17:23,918 INFO L225 Difference]: With dead ends: 3329 [2020-11-12 12:17:23,918 INFO L226 Difference]: Without dead ends: 2477 [2020-11-12 12:17:23,919 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:17:23,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2477 states. [2020-11-12 12:17:23,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2477 to 2477. [2020-11-12 12:17:23,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 2337 states have (on average 1.2888318356867778) internal successors, (3012), 2476 states have internal predecessors, (3012), 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) [2020-11-12 12:17:24,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 3012 transitions. [2020-11-12 12:17:24,004 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 3012 transitions. Word has length 45 [2020-11-12 12:17:24,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:17:24,004 INFO L481 AbstractCegarLoop]: Abstraction has 2477 states and 3012 transitions. [2020-11-12 12:17:24,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 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) [2020-11-12 12:17:24,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 3012 transitions. [2020-11-12 12:17:24,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-12 12:17:24,010 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:17:24,010 INFO L494 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] [2020-11-12 12:17:24,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:17:24,010 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:17:24,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:17:24,011 INFO L82 PathProgramCache]: Analyzing trace with hash 380395389, now seen corresponding path program 1 times [2020-11-12 12:17:24,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:17:24,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696299231] [2020-11-12 12:17:24,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:17:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:17:24,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:17:24,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696299231] [2020-11-12 12:17:24,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:17:24,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:17:24,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030841240] [2020-11-12 12:17:24,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:17:24,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:17:24,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:17:24,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:17:24,201 INFO L87 Difference]: Start difference. First operand 2477 states and 3012 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) [2020-11-12 12:17:24,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:17:24,469 INFO L93 Difference]: Finished difference Result 5631 states and 6587 transitions. [2020-11-12 12:17:24,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-12 12:17:24,470 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 [2020-11-12 12:17:24,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:17:24,481 INFO L225 Difference]: With dead ends: 5631 [2020-11-12 12:17:24,481 INFO L226 Difference]: Without dead ends: 2263 [2020-11-12 12:17:24,481 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-11-12 12:17:24,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2020-11-12 12:17:24,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 1683. [2020-11-12 12:17:24,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1583 states have (on average 1.2590018951358182) internal successors, (1993), 1682 states have internal predecessors, (1993), 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) [2020-11-12 12:17:24,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 1993 transitions. [2020-11-12 12:17:24,542 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 1993 transitions. Word has length 46 [2020-11-12 12:17:24,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:17:24,542 INFO L481 AbstractCegarLoop]: Abstraction has 1683 states and 1993 transitions. [2020-11-12 12:17:24,542 INFO L482 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) [2020-11-12 12:17:24,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 1993 transitions. [2020-11-12 12:17:24,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 12:17:24,547 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:17:24,547 INFO L494 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] [2020-11-12 12:17:24,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:17:24,547 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:17:24,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:17:24,548 INFO L82 PathProgramCache]: Analyzing trace with hash -52437086, now seen corresponding path program 1 times [2020-11-12 12:17:24,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:17:24,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673627999] [2020-11-12 12:17:24,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:17:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:17:24,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:17:24,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673627999] [2020-11-12 12:17:24,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:17:24,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:17:24,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568578129] [2020-11-12 12:17:24,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:17:24,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:17:24,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:17:24,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:17:24,678 INFO L87 Difference]: Start difference. First operand 1683 states and 1993 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2020-11-12 12:17:24,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:17:24,889 INFO L93 Difference]: Finished difference Result 2033 states and 2362 transitions. [2020-11-12 12:17:24,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:17:24,889 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 47 [2020-11-12 12:17:24,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:17:24,895 INFO L225 Difference]: With dead ends: 2033 [2020-11-12 12:17:24,896 INFO L226 Difference]: Without dead ends: 791 [2020-11-12 12:17:24,896 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:17:24,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2020-11-12 12:17:24,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 791. [2020-11-12 12:17:24,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 711 states have (on average 1.1476793248945147) internal successors, (816), 790 states have internal predecessors, (816), 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) [2020-11-12 12:17:24,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 816 transitions. [2020-11-12 12:17:24,922 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 816 transitions. Word has length 47 [2020-11-12 12:17:24,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:17:24,923 INFO L481 AbstractCegarLoop]: Abstraction has 791 states and 816 transitions. [2020-11-12 12:17:24,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2020-11-12 12:17:24,923 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 816 transitions. [2020-11-12 12:17:24,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-12 12:17:24,925 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:17:24,925 INFO L494 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] [2020-11-12 12:17:24,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 12:17:24,926 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:17:24,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:17:24,927 INFO L82 PathProgramCache]: Analyzing trace with hash -274644542, now seen corresponding path program 1 times [2020-11-12 12:17:24,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:17:24,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851513432] [2020-11-12 12:17:24,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:17:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:17:25,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:17:25,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851513432] [2020-11-12 12:17:25,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:17:25,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:17:25,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253057771] [2020-11-12 12:17:25,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:17:25,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:17:25,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:17:25,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:17:25,115 INFO L87 Difference]: Start difference. First operand 791 states and 816 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2020-11-12 12:17:25,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:17:25,237 INFO L93 Difference]: Finished difference Result 790 states and 807 transitions. [2020-11-12 12:17:25,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:17:25,238 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2020-11-12 12:17:25,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:17:25,243 INFO L225 Difference]: With dead ends: 790 [2020-11-12 12:17:25,243 INFO L226 Difference]: Without dead ends: 741 [2020-11-12 12:17:25,244 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:17:25,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2020-11-12 12:17:25,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 741. [2020-11-12 12:17:25,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 666 states have (on average 1.1381381381381381) internal successors, (758), 740 states have internal predecessors, (758), 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) [2020-11-12 12:17:25,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 758 transitions. [2020-11-12 12:17:25,267 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 758 transitions. Word has length 48 [2020-11-12 12:17:25,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:17:25,267 INFO L481 AbstractCegarLoop]: Abstraction has 741 states and 758 transitions. [2020-11-12 12:17:25,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2020-11-12 12:17:25,268 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 758 transitions. [2020-11-12 12:17:25,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-12 12:17:25,270 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:17:25,270 INFO L494 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] [2020-11-12 12:17:25,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 12:17:25,270 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:17:25,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:17:25,271 INFO L82 PathProgramCache]: Analyzing trace with hash -277170535, now seen corresponding path program 1 times [2020-11-12 12:17:25,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:17:25,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602919886] [2020-11-12 12:17:25,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:17:25,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:17:25,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:17:25,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602919886] [2020-11-12 12:17:25,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:17:25,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:17:25,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089439178] [2020-11-12 12:17:25,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:17:25,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:17:25,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:17:25,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:17:25,437 INFO L87 Difference]: Start difference. First operand 741 states and 758 transitions. 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) [2020-11-12 12:17:25,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:17:25,586 INFO L93 Difference]: Finished difference Result 518 states and 526 transitions. [2020-11-12 12:17:25,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:17:25,586 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 [2020-11-12 12:17:25,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:17:25,589 INFO L225 Difference]: With dead ends: 518 [2020-11-12 12:17:25,591 INFO L226 Difference]: Without dead ends: 455 [2020-11-12 12:17:25,591 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 12:17:25,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2020-11-12 12:17:25,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2020-11-12 12:17:25,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 410 states have (on average 1.1073170731707318) internal successors, (454), 454 states have internal predecessors, (454), 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) [2020-11-12 12:17:25,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 454 transitions. [2020-11-12 12:17:25,607 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 454 transitions. Word has length 49 [2020-11-12 12:17:25,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:17:25,608 INFO L481 AbstractCegarLoop]: Abstraction has 455 states and 454 transitions. [2020-11-12 12:17:25,608 INFO L482 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) [2020-11-12 12:17:25,608 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 454 transitions. [2020-11-12 12:17:25,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-12 12:17:25,609 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:17:25,609 INFO L494 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] [2020-11-12 12:17:25,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-12 12:17:25,610 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:17:25,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:17:25,610 INFO L82 PathProgramCache]: Analyzing trace with hash 2135820543, now seen corresponding path program 1 times [2020-11-12 12:17:25,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:17:25,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539228414] [2020-11-12 12:17:25,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:17:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:17:25,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:17:25,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539228414] [2020-11-12 12:17:25,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:17:25,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 12:17:25,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481915187] [2020-11-12 12:17:25,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 12:17:25,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:17:25,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 12:17:25,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 12:17:25,779 INFO L87 Difference]: Start difference. First operand 455 states and 454 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2020-11-12 12:17:25,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:17:25,881 INFO L93 Difference]: Finished difference Result 86 states and 85 transitions. [2020-11-12 12:17:25,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:17:25,881 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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 50 [2020-11-12 12:17:25,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:17:25,881 INFO L225 Difference]: With dead ends: 86 [2020-11-12 12:17:25,882 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:17:25,882 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-11-12 12:17:25,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:17:25,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:17:25,883 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) [2020-11-12 12:17:25,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:17:25,883 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2020-11-12 12:17:25,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:17:25,883 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:17:25,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2020-11-12 12:17:25,884 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:17:25,884 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:17:25,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-12 12:17:25,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:17:25 BasicIcfg [2020-11-12 12:17:25,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:17:25,892 INFO L168 Benchmark]: Toolchain (without parser) took 7972.69 ms. Allocated memory was 302.0 MB in the beginning and 725.6 MB in the end (delta: 423.6 MB). Free memory was 277.1 MB in the beginning and 521.2 MB in the end (delta: -244.0 MB). Peak memory consumption was 181.2 MB. Max. memory is 16.0 GB. [2020-11-12 12:17:25,893 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:17:25,893 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.31 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 245.9 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-11-12 12:17:25,894 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.49 ms. Allocated memory is still 302.0 MB. Free memory was 245.9 MB in the beginning and 243.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:17:25,895 INFO L168 Benchmark]: Boogie Preprocessor took 29.50 ms. Allocated memory is still 302.0 MB. Free memory was 243.9 MB in the beginning and 242.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:17:25,896 INFO L168 Benchmark]: RCFGBuilder took 647.08 ms. Allocated memory is still 302.0 MB. Free memory was 242.6 MB in the beginning and 264.6 MB in the end (delta: -22.0 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. [2020-11-12 12:17:25,897 INFO L168 Benchmark]: TraceAbstraction took 6502.09 ms. Allocated memory was 302.0 MB in the beginning and 725.6 MB in the end (delta: 423.6 MB). Free memory was 263.5 MB in the beginning and 521.2 MB in the end (delta: -257.6 MB). Peak memory consumption was 166.0 MB. Max. memory is 16.0 GB. [2020-11-12 12:17:25,900 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 723.31 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 245.9 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.49 ms. Allocated memory is still 302.0 MB. Free memory was 245.9 MB in the beginning and 243.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.50 ms. Allocated memory is still 302.0 MB. Free memory was 243.9 MB in the beginning and 242.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 647.08 ms. Allocated memory is still 302.0 MB. Free memory was 242.6 MB in the beginning and 264.6 MB in the end (delta: -22.0 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6502.09 ms. Allocated memory was 302.0 MB in the beginning and 725.6 MB in the end (delta: 423.6 MB). Free memory was 263.5 MB in the beginning and 521.2 MB in the end (delta: -257.6 MB). Peak memory consumption was 166.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.3s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 579 SDtfs, 640 SDslu, 2148 SDs, 0 SdLazy, 249 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28879occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 580 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 414 NumberOfCodeBlocks, 414 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 405 ConstructedInterpolants, 0 QuantifiedInterpolants, 51039 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...