/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-Delay.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 06:17:31,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 06:17:31,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 06:17:31,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 06:17:31,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 06:17:31,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 06:17:31,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 06:17:31,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 06:17:31,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 06:17:31,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 06:17:31,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 06:17:31,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 06:17:31,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 06:17:31,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 06:17:31,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 06:17:31,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 06:17:31,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 06:17:31,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 06:17:31,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 06:17:31,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 06:17:31,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 06:17:31,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 06:17:31,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 06:17:31,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 06:17:31,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 06:17:31,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 06:17:31,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 06:17:31,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 06:17:31,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 06:17:31,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 06:17:31,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 06:17:31,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 06:17:31,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 06:17:31,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 06:17:31,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 06:17:31,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 06:17:31,312 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 [2020-11-12 06:17:31,365 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 06:17:31,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 06:17:31,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 06:17:31,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 06:17:31,368 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 06:17:31,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 06:17:31,369 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 06:17:31,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 06:17:31,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 06:17:31,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 06:17:31,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 06:17:31,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 06:17:31,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 06:17:31,372 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 06:17:31,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 06:17:31,372 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 06:17:31,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 06:17:31,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 06:17:31,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 06:17:31,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 06:17:31,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 06:17:31,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 06:17:31,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 06:17:31,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 06:17:31,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 06:17:31,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 06:17:31,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 06:17:31,375 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 06:17:31,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 06:17:31,375 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 06:17:31,376 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=DELAY_SET 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 06:17:31,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 06:17:31,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 06:17:31,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 06:17:31,847 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 06:17:31,847 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 06:17:31,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2020-11-12 06:17:31,944 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68063f5c/693b6717891e4727a8523cabf98945bc/FLAGfdcec8a35 [2020-11-12 06:17:32,646 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 06:17:32,647 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2020-11-12 06:17:32,672 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68063f5c/693b6717891e4727a8523cabf98945bc/FLAGfdcec8a35 [2020-11-12 06:17:32,936 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68063f5c/693b6717891e4727a8523cabf98945bc [2020-11-12 06:17:32,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 06:17:32,948 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 06:17:32,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 06:17:32,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 06:17:32,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 06:17:32,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:17:32" (1/1) ... [2020-11-12 06:17:32,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43b07fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:17:32, skipping insertion in model container [2020-11-12 06:17:32,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:17:32" (1/1) ... [2020-11-12 06:17:32,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 06:17:33,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 06:17:33,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:17:33,519 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 06:17:33,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:17:33,751 INFO L208 MainTranslator]: Completed translation [2020-11-12 06:17:33,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:17:33 WrapperNode [2020-11-12 06:17:33,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 06:17:33,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 06:17:33,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 06:17:33,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 06:17:33,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:17:33" (1/1) ... [2020-11-12 06:17:33,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:17:33" (1/1) ... [2020-11-12 06:17:33,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 06:17:33,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 06:17:33,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 06:17:33,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 06:17:33,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:17:33" (1/1) ... [2020-11-12 06:17:33,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:17:33" (1/1) ... [2020-11-12 06:17:33,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:17:33" (1/1) ... [2020-11-12 06:17:33,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:17:33" (1/1) ... [2020-11-12 06:17:33,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:17:33" (1/1) ... [2020-11-12 06:17:33,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:17:33" (1/1) ... [2020-11-12 06:17:33,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:17:33" (1/1) ... [2020-11-12 06:17:33,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 06:17:33,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 06:17:33,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 06:17:33,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 06:17:33,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:17:33" (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 06:17:34,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 06:17:34,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 06:17:34,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 06:17:34,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 06:17:34,039 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 06:17:34,039 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 06:17:34,040 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 06:17:34,040 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 06:17:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 06:17:34,041 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 06:17:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-12 06:17:34,042 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-12 06:17:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 06:17:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 06:17:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 06:17:34,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 06:17:34,045 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 06:17:34,764 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 06:17:34,764 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 06:17:34,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:17:34 BoogieIcfgContainer [2020-11-12 06:17:34,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 06:17:34,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 06:17:34,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 06:17:34,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 06:17:34,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:17:32" (1/3) ... [2020-11-12 06:17:34,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25fc03ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:17:34, skipping insertion in model container [2020-11-12 06:17:34,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:17:33" (2/3) ... [2020-11-12 06:17:34,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25fc03ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:17:34, skipping insertion in model container [2020-11-12 06:17:34,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:17:34" (3/3) ... [2020-11-12 06:17:34,782 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.opt.i [2020-11-12 06:17:34,803 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 06:17:34,804 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 06:17:34,809 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 06:17:34,810 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 06:17:34,856 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,856 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,857 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,857 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,857 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,858 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,858 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,858 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,858 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,864 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,865 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,865 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,865 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,866 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,866 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,866 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,866 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,866 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,867 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,871 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,871 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,871 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,871 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,872 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,872 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,872 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,872 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,874 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,874 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,874 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,875 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,876 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,876 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,876 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,876 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,876 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,877 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,877 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,877 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,877 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,878 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,878 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,878 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,881 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,882 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,882 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,882 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,890 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,890 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,890 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,891 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,903 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,903 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,904 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,904 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,907 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,908 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,908 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:17:34,912 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 06:17:34,926 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-12 06:17:34,964 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 06:17:34,965 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 06:17:34,965 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 06:17:34,965 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 06:17:34,965 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 06:17:34,965 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 06:17:34,965 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 06:17:34,965 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 06:17:34,987 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 89 transitions, 198 flow [2020-11-12 06:17:44,686 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 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 06:17:46,536 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 1845ms [2020-11-12 06:17:46,668 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 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 06:17:46,773 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 54311 states, 50633 states have (on average 1.613414176525191) internal successors, (81692), 54310 states have internal predecessors, (81692), 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 06:17:47,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 54311 states, 50633 states have (on average 1.613414176525191) internal successors, (81692), 54310 states have internal predecessors, (81692), 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 06:17:47,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 06:17:47,197 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:17:47,198 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 06:17:47,199 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:17:47,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:17:47,206 INFO L82 PathProgramCache]: Analyzing trace with hash -864945227, now seen corresponding path program 1 times [2020-11-12 06:17:47,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:17:47,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281503390] [2020-11-12 06:17:47,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:17:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:17:47,706 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 06:17:47,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281503390] [2020-11-12 06:17:47,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:17:47,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:17:47,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66714557] [2020-11-12 06:17:47,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:17:47,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:17:47,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:17:47,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:17:47,774 INFO L87 Difference]: Start difference. First operand has 54311 states, 50633 states have (on average 1.613414176525191) internal successors, (81692), 54310 states have internal predecessors, (81692), 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 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 06:17:48,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:17:48,612 INFO L93 Difference]: Finished difference Result 73967 states and 107234 transitions. [2020-11-12 06:17:48,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:17:48,614 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 06:17:48,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:17:48,822 INFO L225 Difference]: With dead ends: 73967 [2020-11-12 06:17:48,822 INFO L226 Difference]: Without dead ends: 23444 [2020-11-12 06:17:48,824 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:17:49,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23444 states. [2020-11-12 06:17:49,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23444 to 23444. [2020-11-12 06:17:49,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23444 states, 21932 states have (on average 1.952991063286522) internal successors, (42833), 23443 states have internal predecessors, (42833), 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 06:17:50,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23444 states to 23444 states and 42833 transitions. [2020-11-12 06:17:50,015 INFO L78 Accepts]: Start accepts. Automaton has 23444 states and 42833 transitions. Word has length 45 [2020-11-12 06:17:50,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:17:50,016 INFO L481 AbstractCegarLoop]: Abstraction has 23444 states and 42833 transitions. [2020-11-12 06:17:50,016 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 06:17:50,016 INFO L276 IsEmpty]: Start isEmpty. Operand 23444 states and 42833 transitions. [2020-11-12 06:17:50,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 06:17:50,047 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:17:50,047 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 06:17:50,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 06:17:50,048 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:17:50,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:17:50,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1929238550, now seen corresponding path program 1 times [2020-11-12 06:17:50,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:17:50,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651409969] [2020-11-12 06:17:50,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:17:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:17:50,306 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 06:17:50,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651409969] [2020-11-12 06:17:50,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:17:50,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:17:50,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94148733] [2020-11-12 06:17:50,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:17:50,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:17:50,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:17:50,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:17:50,310 INFO L87 Difference]: Start difference. First operand 23444 states and 42833 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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 06:17:50,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:17:50,872 INFO L93 Difference]: Finished difference Result 27764 states and 56873 transitions. [2020-11-12 06:17:50,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:17:50,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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 06:17:50,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:17:50,927 INFO L225 Difference]: With dead ends: 27764 [2020-11-12 06:17:50,928 INFO L226 Difference]: Without dead ends: 20238 [2020-11-12 06:17:50,929 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 06:17:51,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20238 states. [2020-11-12 06:17:51,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20238 to 20238. [2020-11-12 06:17:51,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20238 states, 18942 states have (on average 1.9785133565621371) internal successors, (37477), 20237 states have internal predecessors, (37477), 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 06:17:51,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20238 states to 20238 states and 37477 transitions. [2020-11-12 06:17:51,722 INFO L78 Accepts]: Start accepts. Automaton has 20238 states and 37477 transitions. Word has length 47 [2020-11-12 06:17:51,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:17:51,723 INFO L481 AbstractCegarLoop]: Abstraction has 20238 states and 37477 transitions. [2020-11-12 06:17:51,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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 06:17:51,723 INFO L276 IsEmpty]: Start isEmpty. Operand 20238 states and 37477 transitions. [2020-11-12 06:17:51,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-12 06:17:51,751 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:17:51,751 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 06:17:51,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 06:17:51,751 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:17:51,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:17:51,753 INFO L82 PathProgramCache]: Analyzing trace with hash 882612085, now seen corresponding path program 1 times [2020-11-12 06:17:51,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:17:51,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228921313] [2020-11-12 06:17:51,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:17:51,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:17:51,955 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 06:17:51,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228921313] [2020-11-12 06:17:51,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:17:51,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:17:51,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483889822] [2020-11-12 06:17:51,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:17:51,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:17:51,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:17:51,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:17:51,960 INFO L87 Difference]: Start difference. First operand 20238 states and 37477 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 06:17:52,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:17:52,237 INFO L93 Difference]: Finished difference Result 21966 states and 44893 transitions. [2020-11-12 06:17:52,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:17:52,238 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 06:17:52,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:17:52,281 INFO L225 Difference]: With dead ends: 21966 [2020-11-12 06:17:52,281 INFO L226 Difference]: Without dead ends: 15858 [2020-11-12 06:17:52,282 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:17:52,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15858 states. [2020-11-12 06:17:52,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15858 to 15858. [2020-11-12 06:17:52,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15858 states, 14850 states have (on average 1.9993939393939395) internal successors, (29691), 15857 states have internal predecessors, (29691), 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 06:17:53,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15858 states to 15858 states and 29691 transitions. [2020-11-12 06:17:53,010 INFO L78 Accepts]: Start accepts. Automaton has 15858 states and 29691 transitions. Word has length 49 [2020-11-12 06:17:53,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:17:53,010 INFO L481 AbstractCegarLoop]: Abstraction has 15858 states and 29691 transitions. [2020-11-12 06:17:53,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 06:17:53,011 INFO L276 IsEmpty]: Start isEmpty. Operand 15858 states and 29691 transitions. [2020-11-12 06:17:53,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-12 06:17:53,041 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:17:53,041 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 06:17:53,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 06:17:53,042 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:17:53,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:17:53,042 INFO L82 PathProgramCache]: Analyzing trace with hash -2020105092, now seen corresponding path program 1 times [2020-11-12 06:17:53,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:17:53,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852137040] [2020-11-12 06:17:53,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:17:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:17:53,189 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 06:17:53,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852137040] [2020-11-12 06:17:53,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:17:53,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:17:53,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137855645] [2020-11-12 06:17:53,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:17:53,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:17:53,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:17:53,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:17:53,192 INFO L87 Difference]: Start difference. First operand 15858 states and 29691 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 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 06:17:53,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:17:53,517 INFO L93 Difference]: Finished difference Result 27970 states and 58891 transitions. [2020-11-12 06:17:53,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:17:53,518 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 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 06:17:53,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:17:53,562 INFO L225 Difference]: With dead ends: 27970 [2020-11-12 06:17:53,562 INFO L226 Difference]: Without dead ends: 16434 [2020-11-12 06:17:53,563 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:17:53,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16434 states. [2020-11-12 06:17:54,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16434 to 11826. [2020-11-12 06:17:54,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11826 states, 11106 states have (on average 2.00423194669548) internal successors, (22259), 11825 states have internal predecessors, (22259), 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 06:17:54,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11826 states to 11826 states and 22259 transitions. [2020-11-12 06:17:54,229 INFO L78 Accepts]: Start accepts. Automaton has 11826 states and 22259 transitions. Word has length 50 [2020-11-12 06:17:54,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:17:54,230 INFO L481 AbstractCegarLoop]: Abstraction has 11826 states and 22259 transitions. [2020-11-12 06:17:54,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 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 06:17:54,230 INFO L276 IsEmpty]: Start isEmpty. Operand 11826 states and 22259 transitions. [2020-11-12 06:17:54,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 06:17:54,247 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:17:54,247 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, 1] [2020-11-12 06:17:54,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 06:17:54,248 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:17:54,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:17:54,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1784032588, now seen corresponding path program 1 times [2020-11-12 06:17:54,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:17:54,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217692208] [2020-11-12 06:17:54,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:17:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:17:54,390 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 06:17:54,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217692208] [2020-11-12 06:17:54,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:17:54,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:17:54,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312569993] [2020-11-12 06:17:54,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:17:54,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:17:54,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:17:54,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:17:54,393 INFO L87 Difference]: Start difference. First operand 11826 states and 22259 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:17:54,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:17:54,592 INFO L93 Difference]: Finished difference Result 12786 states and 26539 transitions. [2020-11-12 06:17:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:17:54,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2020-11-12 06:17:54,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:17:54,621 INFO L225 Difference]: With dead ends: 12786 [2020-11-12 06:17:54,621 INFO L226 Difference]: Without dead ends: 9351 [2020-11-12 06:17:54,622 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:17:54,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9351 states. [2020-11-12 06:17:54,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9351 to 9351. [2020-11-12 06:17:54,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9351 states, 8791 states have (on average 2.019337959276533) internal successors, (17752), 9350 states have internal predecessors, (17752), 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 06:17:54,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9351 states to 9351 states and 17752 transitions. [2020-11-12 06:17:54,832 INFO L78 Accepts]: Start accepts. Automaton has 9351 states and 17752 transitions. Word has length 51 [2020-11-12 06:17:54,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:17:54,832 INFO L481 AbstractCegarLoop]: Abstraction has 9351 states and 17752 transitions. [2020-11-12 06:17:54,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:17:54,832 INFO L276 IsEmpty]: Start isEmpty. Operand 9351 states and 17752 transitions. [2020-11-12 06:17:54,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-12 06:17:54,851 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:17:54,851 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, 1, 1] [2020-11-12 06:17:54,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 06:17:54,852 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:17:54,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:17:54,852 INFO L82 PathProgramCache]: Analyzing trace with hash 2111782584, now seen corresponding path program 1 times [2020-11-12 06:17:54,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:17:54,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915350485] [2020-11-12 06:17:54,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:17:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:17:55,028 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 06:17:55,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915350485] [2020-11-12 06:17:55,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:17:55,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:17:55,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814391503] [2020-11-12 06:17:55,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:17:55,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:17:55,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:17:55,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:17:55,033 INFO L87 Difference]: Start difference. First operand 9351 states and 17752 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 06:17:55,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:17:55,459 INFO L93 Difference]: Finished difference Result 25855 states and 56485 transitions. [2020-11-12 06:17:55,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-12 06:17:55,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2020-11-12 06:17:55,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:17:55,694 INFO L225 Difference]: With dead ends: 25855 [2020-11-12 06:17:55,696 INFO L226 Difference]: Without dead ends: 9359 [2020-11-12 06:17:55,698 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-11-12 06:17:55,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9359 states. [2020-11-12 06:17:55,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9359 to 6799. [2020-11-12 06:17:55,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6799 states, 6399 states have (on average 2.043756837005782) internal successors, (13078), 6798 states have internal predecessors, (13078), 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 06:17:55,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6799 states to 6799 states and 13078 transitions. [2020-11-12 06:17:55,867 INFO L78 Accepts]: Start accepts. Automaton has 6799 states and 13078 transitions. Word has length 52 [2020-11-12 06:17:55,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:17:55,868 INFO L481 AbstractCegarLoop]: Abstraction has 6799 states and 13078 transitions. [2020-11-12 06:17:55,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 06:17:55,868 INFO L276 IsEmpty]: Start isEmpty. Operand 6799 states and 13078 transitions. [2020-11-12 06:17:55,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-12 06:17:55,878 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:17:55,878 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, 1, 1, 1] [2020-11-12 06:17:55,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 06:17:55,878 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:17:55,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:17:55,879 INFO L82 PathProgramCache]: Analyzing trace with hash 335025175, now seen corresponding path program 1 times [2020-11-12 06:17:55,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:17:55,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870135143] [2020-11-12 06:17:55,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:17:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:17:55,992 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 06:17:55,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870135143] [2020-11-12 06:17:55,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:17:55,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:17:55,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779036208] [2020-11-12 06:17:55,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:17:55,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:17:55,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:17:55,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:17:55,995 INFO L87 Difference]: Start difference. First operand 6799 states and 13078 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:17:56,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:17:56,169 INFO L93 Difference]: Finished difference Result 8347 states and 16318 transitions. [2020-11-12 06:17:56,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:17:56,170 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2020-11-12 06:17:56,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:17:56,186 INFO L225 Difference]: With dead ends: 8347 [2020-11-12 06:17:56,186 INFO L226 Difference]: Without dead ends: 6743 [2020-11-12 06:17:56,187 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 06:17:56,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6743 states. [2020-11-12 06:17:56,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6743 to 6743. [2020-11-12 06:17:56,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6743 states, 6347 states have (on average 2.0403340160705845) internal successors, (12950), 6742 states have internal predecessors, (12950), 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 06:17:56,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6743 states to 6743 states and 12950 transitions. [2020-11-12 06:17:56,338 INFO L78 Accepts]: Start accepts. Automaton has 6743 states and 12950 transitions. Word has length 53 [2020-11-12 06:17:56,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:17:56,339 INFO L481 AbstractCegarLoop]: Abstraction has 6743 states and 12950 transitions. [2020-11-12 06:17:56,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:17:56,339 INFO L276 IsEmpty]: Start isEmpty. Operand 6743 states and 12950 transitions. [2020-11-12 06:17:56,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-12 06:17:56,352 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:17:56,352 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, 1, 1, 1, 1] [2020-11-12 06:17:56,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 06:17:56,352 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:17:56,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:17:56,353 INFO L82 PathProgramCache]: Analyzing trace with hash 144850953, now seen corresponding path program 1 times [2020-11-12 06:17:56,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:17:56,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275530318] [2020-11-12 06:17:56,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:17:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:17:56,542 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 06:17:56,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275530318] [2020-11-12 06:17:56,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:17:56,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:17:56,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056958749] [2020-11-12 06:17:56,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:17:56,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:17:56,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:17:56,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:17:56,551 INFO L87 Difference]: Start difference. First operand 6743 states and 12950 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 06:17:56,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:17:56,762 INFO L93 Difference]: Finished difference Result 7859 states and 15242 transitions. [2020-11-12 06:17:56,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:17:56,763 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2020-11-12 06:17:56,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:17:56,775 INFO L225 Difference]: With dead ends: 7859 [2020-11-12 06:17:56,775 INFO L226 Difference]: Without dead ends: 6221 [2020-11-12 06:17:56,776 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 06:17:56,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6221 states. [2020-11-12 06:17:56,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6221 to 6221. [2020-11-12 06:17:56,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6221 states, 5861 states have (on average 2.0179150315645793) internal successors, (11827), 6220 states have internal predecessors, (11827), 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 06:17:56,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6221 states to 6221 states and 11827 transitions. [2020-11-12 06:17:56,967 INFO L78 Accepts]: Start accepts. Automaton has 6221 states and 11827 transitions. Word has length 54 [2020-11-12 06:17:56,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:17:56,968 INFO L481 AbstractCegarLoop]: Abstraction has 6221 states and 11827 transitions. [2020-11-12 06:17:56,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 06:17:56,969 INFO L276 IsEmpty]: Start isEmpty. Operand 6221 states and 11827 transitions. [2020-11-12 06:17:56,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-12 06:17:56,981 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:17:56,981 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, 1, 1, 1, 1, 1] [2020-11-12 06:17:56,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-12 06:17:56,981 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:17:56,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:17:56,982 INFO L82 PathProgramCache]: Analyzing trace with hash -731473420, now seen corresponding path program 1 times [2020-11-12 06:17:56,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:17:56,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060218476] [2020-11-12 06:17:56,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:17:56,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:17:57,099 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 06:17:57,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060218476] [2020-11-12 06:17:57,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:17:57,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 06:17:57,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873722213] [2020-11-12 06:17:57,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 06:17:57,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:17:57,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 06:17:57,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 06:17:57,102 INFO L87 Difference]: Start difference. First operand 6221 states and 11827 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:17:57,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:17:57,319 INFO L93 Difference]: Finished difference Result 6140 states and 11629 transitions. [2020-11-12 06:17:57,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-12 06:17:57,320 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2020-11-12 06:17:57,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:17:57,328 INFO L225 Difference]: With dead ends: 6140 [2020-11-12 06:17:57,328 INFO L226 Difference]: Without dead ends: 4461 [2020-11-12 06:17:57,328 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-12 06:17:57,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4461 states. [2020-11-12 06:17:57,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4461 to 4461. [2020-11-12 06:17:57,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4461 states, 4218 states have (on average 1.9551920341394025) internal successors, (8247), 4460 states have internal predecessors, (8247), 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 06:17:57,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4461 states to 4461 states and 8247 transitions. [2020-11-12 06:17:57,412 INFO L78 Accepts]: Start accepts. Automaton has 4461 states and 8247 transitions. Word has length 55 [2020-11-12 06:17:57,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:17:57,412 INFO L481 AbstractCegarLoop]: Abstraction has 4461 states and 8247 transitions. [2020-11-12 06:17:57,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:17:57,413 INFO L276 IsEmpty]: Start isEmpty. Operand 4461 states and 8247 transitions. [2020-11-12 06:17:57,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-12 06:17:57,421 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:17:57,421 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:17:57,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-12 06:17:57,421 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:17:57,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:17:57,422 INFO L82 PathProgramCache]: Analyzing trace with hash -476517349, now seen corresponding path program 1 times [2020-11-12 06:17:57,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:17:57,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671547015] [2020-11-12 06:17:57,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:17:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:17:57,554 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 06:17:57,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671547015] [2020-11-12 06:17:57,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:17:57,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-12 06:17:57,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083937792] [2020-11-12 06:17:57,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-12 06:17:57,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:17:57,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-12 06:17:57,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-12 06:17:57,556 INFO L87 Difference]: Start difference. First operand 4461 states and 8247 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:17:57,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:17:57,813 INFO L93 Difference]: Finished difference Result 3327 states and 6006 transitions. [2020-11-12 06:17:57,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-12 06:17:57,814 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2020-11-12 06:17:57,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:17:57,817 INFO L225 Difference]: With dead ends: 3327 [2020-11-12 06:17:57,817 INFO L226 Difference]: Without dead ends: 1754 [2020-11-12 06:17:57,818 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2020-11-12 06:17:57,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2020-11-12 06:17:57,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1754. [2020-11-12 06:17:57,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1754 states, 1673 states have (on average 1.8499701135684399) internal successors, (3095), 1753 states have internal predecessors, (3095), 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 06:17:57,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 3095 transitions. [2020-11-12 06:17:57,847 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 3095 transitions. Word has length 57 [2020-11-12 06:17:57,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:17:57,848 INFO L481 AbstractCegarLoop]: Abstraction has 1754 states and 3095 transitions. [2020-11-12 06:17:57,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:17:57,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 3095 transitions. [2020-11-12 06:17:57,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-12 06:17:57,852 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:17:57,852 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:17:57,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-12 06:17:57,852 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:17:57,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:17:57,853 INFO L82 PathProgramCache]: Analyzing trace with hash 70003412, now seen corresponding path program 1 times [2020-11-12 06:17:57,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:17:57,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71647537] [2020-11-12 06:17:57,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:17:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:17:57,965 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 06:17:57,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71647537] [2020-11-12 06:17:57,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:17:57,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:17:57,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614580963] [2020-11-12 06:17:57,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:17:57,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:17:57,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:17:57,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:17:57,968 INFO L87 Difference]: Start difference. First operand 1754 states and 3095 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:17:58,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:17:58,066 INFO L93 Difference]: Finished difference Result 2917 states and 5514 transitions. [2020-11-12 06:17:58,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:17:58,067 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2020-11-12 06:17:58,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:17:58,070 INFO L225 Difference]: With dead ends: 2917 [2020-11-12 06:17:58,070 INFO L226 Difference]: Without dead ends: 1632 [2020-11-12 06:17:58,071 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 06:17:58,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2020-11-12 06:17:58,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1632. [2020-11-12 06:17:58,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1632 states, 1551 states have (on average 1.8736299161831076) internal successors, (2906), 1631 states have internal predecessors, (2906), 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 06:17:58,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 2906 transitions. [2020-11-12 06:17:58,102 INFO L78 Accepts]: Start accepts. Automaton has 1632 states and 2906 transitions. Word has length 59 [2020-11-12 06:17:58,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:17:58,102 INFO L481 AbstractCegarLoop]: Abstraction has 1632 states and 2906 transitions. [2020-11-12 06:17:58,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:17:58,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1632 states and 2906 transitions. [2020-11-12 06:17:58,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-12 06:17:58,106 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:17:58,106 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:17:58,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-12 06:17:58,106 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:17:58,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:17:58,107 INFO L82 PathProgramCache]: Analyzing trace with hash -370712646, now seen corresponding path program 2 times [2020-11-12 06:17:58,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:17:58,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649066503] [2020-11-12 06:17:58,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:17:58,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:17:58,205 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 06:17:58,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649066503] [2020-11-12 06:17:58,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:17:58,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:17:58,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410822299] [2020-11-12 06:17:58,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:17:58,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:17:58,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:17:58,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:17:58,207 INFO L87 Difference]: Start difference. First operand 1632 states and 2906 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:17:58,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:17:58,320 INFO L93 Difference]: Finished difference Result 1308 states and 2582 transitions. [2020-11-12 06:17:58,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:17:58,321 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2020-11-12 06:17:58,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:17:58,321 INFO L225 Difference]: With dead ends: 1308 [2020-11-12 06:17:58,321 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 06:17:58,322 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 06:17:58,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 06:17:58,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 06:17:58,322 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 06:17:58,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 06:17:58,322 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2020-11-12 06:17:58,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:17:58,323 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 06:17:58,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:17:58,323 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 06:17:58,323 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 06:17:58,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-12 06:17:58,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:17:58 BasicIcfg [2020-11-12 06:17:58,328 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 06:17:58,331 INFO L168 Benchmark]: Toolchain (without parser) took 25387.01 ms. Allocated memory was 302.0 MB in the beginning and 6.5 GB in the end (delta: 6.2 GB). Free memory was 277.2 MB in the beginning and 5.9 GB in the end (delta: -5.6 GB). Peak memory consumption was 923.6 MB. Max. memory is 16.0 GB. [2020-11-12 06:17:58,332 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 272.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:17:58,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 802.50 ms. Allocated memory is still 302.0 MB. Free memory was 276.4 MB in the beginning and 245.3 MB in the end (delta: 31.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2020-11-12 06:17:58,333 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.94 ms. Allocated memory is still 302.0 MB. Free memory was 245.2 MB in the beginning and 243.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:17:58,334 INFO L168 Benchmark]: Boogie Preprocessor took 66.03 ms. Allocated memory is still 302.0 MB. Free memory was 243.3 MB in the beginning and 241.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:17:58,334 INFO L168 Benchmark]: RCFGBuilder took 844.34 ms. Allocated memory is still 302.0 MB. Free memory was 241.7 MB in the beginning and 261.5 MB in the end (delta: -19.7 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.0 GB. [2020-11-12 06:17:58,335 INFO L168 Benchmark]: TraceAbstraction took 23555.69 ms. Allocated memory was 302.0 MB in the beginning and 6.5 GB in the end (delta: 6.2 GB). Free memory was 260.4 MB in the beginning and 5.9 GB in the end (delta: -5.6 GB). Peak memory consumption was 904.3 MB. Max. memory is 16.0 GB. [2020-11-12 06:17:58,339 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 272.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 802.50 ms. Allocated memory is still 302.0 MB. Free memory was 276.4 MB in the beginning and 245.3 MB in the end (delta: 31.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 100.94 ms. Allocated memory is still 302.0 MB. Free memory was 245.2 MB in the beginning and 243.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 66.03 ms. Allocated memory is still 302.0 MB. Free memory was 243.3 MB in the beginning and 241.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 844.34 ms. Allocated memory is still 302.0 MB. Free memory was 241.7 MB in the beginning and 261.5 MB in the end (delta: -19.7 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 23555.69 ms. Allocated memory was 302.0 MB in the beginning and 6.5 GB in the end (delta: 6.2 GB). Free memory was 260.4 MB in the beginning and 5.9 GB in the end (delta: -5.6 GB). Peak memory consumption was 904.3 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 5 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 23.3s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.8s, HoareTripleCheckerStatistics: 1067 SDtfs, 1591 SDslu, 3875 SDs, 0 SdLazy, 460 SolverSat, 90 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54311occurred 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: 4.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 7168 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 631 NumberOfCodeBlocks, 631 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 619 ConstructedInterpolants, 0 QuantifiedInterpolants, 87759 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...