/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:19:58,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:19:58,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:19:58,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:19:58,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:19:58,285 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:19:58,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:19:58,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:19:58,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:19:58,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:19:58,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:19:58,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:19:58,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:19:58,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:19:58,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:19:58,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:19:58,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:19:58,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:19:58,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:19:58,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:19:58,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:19:58,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:19:58,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:19:58,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:19:58,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 12:19:58,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:19:58,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:19:58,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:19:58,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:19:58,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:19:58,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:19:58,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:19:58,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:19:58,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:19:58,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:19:58,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:19:58,357 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf [2020-11-12 12:19:58,407 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:19:58,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:19:58,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:19:58,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:19:58,410 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:19:58,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:19:58,410 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:19:58,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:19:58,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:19:58,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:19:58,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:19:58,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:19:58,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:19:58,412 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:19:58,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:19:58,412 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:19:58,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:19:58,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:19:58,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:19:58,413 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:19:58,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:19:58,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:19:58,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:19:58,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:19:58,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:19:58,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:19:58,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:19:58,415 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:19:58,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:19:58,415 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:19:58,415 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:19:58,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:19:58,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:19:58,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:19:58,896 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:19:58,897 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:19:58,898 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2020-11-12 12:19:59,006 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9e86f413/f4a16f5e548e4a3aa0e8e5d16dbe3391/FLAG6d7173ed9 [2020-11-12 12:19:59,748 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:19:59,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2020-11-12 12:19:59,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9e86f413/f4a16f5e548e4a3aa0e8e5d16dbe3391/FLAG6d7173ed9 [2020-11-12 12:20:00,051 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9e86f413/f4a16f5e548e4a3aa0e8e5d16dbe3391 [2020-11-12 12:20:00,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:20:00,067 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:20:00,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:20:00,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:20:00,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:20:00,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:20:00" (1/1) ... [2020-11-12 12:20:00,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255d2455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:00, skipping insertion in model container [2020-11-12 12:20:00,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:20:00" (1/1) ... [2020-11-12 12:20:00,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:20:00,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:20:00,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:20:00,649 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:20:00,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:20:00,847 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:20:00,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:00 WrapperNode [2020-11-12 12:20:00,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:20:00,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:20:00,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:20:00,849 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:20:00,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:00" (1/1) ... [2020-11-12 12:20:00,875 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:00" (1/1) ... [2020-11-12 12:20:00,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:20:00,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:20:00,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:20:00,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:20:00,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:00" (1/1) ... [2020-11-12 12:20:00,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:00" (1/1) ... [2020-11-12 12:20:00,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:00" (1/1) ... [2020-11-12 12:20:00,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:00" (1/1) ... [2020-11-12 12:20:00,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:00" (1/1) ... [2020-11-12 12:20:00,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:00" (1/1) ... [2020-11-12 12:20:00,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:00" (1/1) ... [2020-11-12 12:20:00,929 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:20:00,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:20:00,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:20:00,931 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:20:00,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:20:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:20:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:20:01,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:20:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:20:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:20:01,018 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:20:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:20:01,018 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:20:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 12:20:01,019 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 12:20:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-12 12:20:01,019 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-12 12:20:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:20:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:20:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:20:01,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:20:01,022 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 12:20:01,561 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:20:01,562 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:20:01,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:20:01 BoogieIcfgContainer [2020-11-12 12:20:01,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:20:01,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:20:01,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:20:01,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:20:01,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:20:00" (1/3) ... [2020-11-12 12:20:01,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4723d831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:20:01, skipping insertion in model container [2020-11-12 12:20:01,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:00" (2/3) ... [2020-11-12 12:20:01,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4723d831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:20:01, skipping insertion in model container [2020-11-12 12:20:01,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:20:01" (3/3) ... [2020-11-12 12:20:01,578 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_tso.oepc.i [2020-11-12 12:20:01,595 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:20:01,596 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:20:01,600 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:20:01,601 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:20:01,640 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,641 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,641 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,641 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,642 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,642 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,642 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,642 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,644 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,644 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,644 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,644 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,645 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,645 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,647 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,647 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,647 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,648 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,648 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,649 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,651 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,651 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,651 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,651 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,652 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,652 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,652 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,652 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,653 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,653 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,653 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,653 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,656 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,656 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,663 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,664 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,664 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,664 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,667 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,668 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,668 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,668 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,671 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,671 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,672 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:20:01,674 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:20:01,688 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-12 12:20:01,713 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:20:01,713 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:20:01,713 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:20:01,713 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:20:01,713 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:20:01,714 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:20:01,714 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:20:01,714 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:20:01,727 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 89 transitions, 198 flow [2020-11-12 12:20:11,380 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 12:20:16,674 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 5286ms [2020-11-12 12:20:16,767 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 12:20:17,126 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 219588 states, 202092 states have (on average 1.2638798171129981) internal successors, (255420), 219587 states have internal predecessors, (255420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:17,279 INFO L276 IsEmpty]: Start isEmpty. Operand has 219588 states, 202092 states have (on average 1.2638798171129981) internal successors, (255420), 219587 states have internal predecessors, (255420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:17,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 12:20:17,335 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:17,336 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:20:17,336 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:17,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:17,343 INFO L82 PathProgramCache]: Analyzing trace with hash -864945227, now seen corresponding path program 1 times [2020-11-12 12:20:17,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:17,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388785827] [2020-11-12 12:20:17,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:17,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:17,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388785827] [2020-11-12 12:20:17,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:17,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:20:17,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544557362] [2020-11-12 12:20:17,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:20:17,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:17,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:20:17,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:20:18,033 INFO L87 Difference]: Start difference. First operand has 219588 states, 202092 states have (on average 1.2638798171129981) internal successors, (255420), 219587 states have internal predecessors, (255420), 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 12:20:19,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:19,474 INFO L93 Difference]: Finished difference Result 93406 states and 113846 transitions. [2020-11-12 12:20:19,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:20:19,477 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2020-11-12 12:20:19,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:19,689 INFO L225 Difference]: With dead ends: 93406 [2020-11-12 12:20:19,690 INFO L226 Difference]: Without dead ends: 29206 [2020-11-12 12:20:19,694 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:20:20,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29206 states. [2020-11-12 12:20:21,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29206 to 29206. [2020-11-12 12:20:21,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29206 states, 27694 states have (on average 1.4165523218025564) internal successors, (39230), 29205 states have internal predecessors, (39230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:21,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29206 states to 29206 states and 39230 transitions. [2020-11-12 12:20:21,338 INFO L78 Accepts]: Start accepts. Automaton has 29206 states and 39230 transitions. Word has length 45 [2020-11-12 12:20:21,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:21,340 INFO L481 AbstractCegarLoop]: Abstraction has 29206 states and 39230 transitions. [2020-11-12 12:20:21,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:21,341 INFO L276 IsEmpty]: Start isEmpty. Operand 29206 states and 39230 transitions. [2020-11-12 12:20:21,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 12:20:21,378 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:21,378 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:20:21,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:20:21,379 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:21,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:21,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1929238550, now seen corresponding path program 1 times [2020-11-12 12:20:21,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:21,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099172985] [2020-11-12 12:20:21,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:21,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:21,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099172985] [2020-11-12 12:20:21,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:21,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:20:21,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666854763] [2020-11-12 12:20:21,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:20:21,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:21,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:20:21,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:20:21,608 INFO L87 Difference]: Start difference. First operand 29206 states and 39230 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 12:20:21,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:21,984 INFO L93 Difference]: Finished difference Result 31688 states and 42504 transitions. [2020-11-12 12:20:21,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:20:21,985 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 12:20:21,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:22,040 INFO L225 Difference]: With dead ends: 31688 [2020-11-12 12:20:22,040 INFO L226 Difference]: Without dead ends: 24713 [2020-11-12 12:20:22,042 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:20:22,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24713 states. [2020-11-12 12:20:22,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24713 to 24713. [2020-11-12 12:20:22,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24713 states, 23417 states have (on average 1.3842507579963275) internal successors, (32415), 24712 states have internal predecessors, (32415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:23,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24713 states to 24713 states and 32415 transitions. [2020-11-12 12:20:23,005 INFO L78 Accepts]: Start accepts. Automaton has 24713 states and 32415 transitions. Word has length 47 [2020-11-12 12:20:23,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:23,005 INFO L481 AbstractCegarLoop]: Abstraction has 24713 states and 32415 transitions. [2020-11-12 12:20:23,006 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 12:20:23,006 INFO L276 IsEmpty]: Start isEmpty. Operand 24713 states and 32415 transitions. [2020-11-12 12:20:23,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-12 12:20:23,032 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:23,032 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:20:23,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:20:23,032 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:23,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:23,033 INFO L82 PathProgramCache]: Analyzing trace with hash 882612085, now seen corresponding path program 1 times [2020-11-12 12:20:23,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:23,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334938448] [2020-11-12 12:20:23,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:23,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:23,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334938448] [2020-11-12 12:20:23,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:23,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:20:23,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072810567] [2020-11-12 12:20:23,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:20:23,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:23,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:20:23,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:20:23,195 INFO L87 Difference]: Start difference. First operand 24713 states and 32415 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 12:20:23,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:23,485 INFO L93 Difference]: Finished difference Result 25145 states and 33055 transitions. [2020-11-12 12:20:23,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:20:23,486 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 12:20:23,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:23,533 INFO L225 Difference]: With dead ends: 25145 [2020-11-12 12:20:23,533 INFO L226 Difference]: Without dead ends: 19628 [2020-11-12 12:20:23,534 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:20:23,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19628 states. [2020-11-12 12:20:23,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19628 to 19628. [2020-11-12 12:20:23,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19628 states, 18620 states have (on average 1.3975832438238454) internal successors, (26023), 19627 states have internal predecessors, (26023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:23,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19628 states to 19628 states and 26023 transitions. [2020-11-12 12:20:23,976 INFO L78 Accepts]: Start accepts. Automaton has 19628 states and 26023 transitions. Word has length 49 [2020-11-12 12:20:23,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:23,979 INFO L481 AbstractCegarLoop]: Abstraction has 19628 states and 26023 transitions. [2020-11-12 12:20:23,979 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 12:20:23,979 INFO L276 IsEmpty]: Start isEmpty. Operand 19628 states and 26023 transitions. [2020-11-12 12:20:24,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-12 12:20:24,004 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:24,004 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 12:20:24,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:20:24,005 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:24,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:24,007 INFO L82 PathProgramCache]: Analyzing trace with hash -2020105092, now seen corresponding path program 1 times [2020-11-12 12:20:24,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:24,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125868754] [2020-11-12 12:20:24,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:24,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:24,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125868754] [2020-11-12 12:20:24,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:24,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:20:24,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106214151] [2020-11-12 12:20:24,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:20:24,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:24,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:20:24,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:20:24,194 INFO L87 Difference]: Start difference. First operand 19628 states and 26023 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 12:20:24,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:24,808 INFO L93 Difference]: Finished difference Result 29854 states and 37236 transitions. [2020-11-12 12:20:24,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:20:24,809 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 12:20:24,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:24,846 INFO L225 Difference]: With dead ends: 29854 [2020-11-12 12:20:24,847 INFO L226 Difference]: Without dead ends: 17315 [2020-11-12 12:20:24,847 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:20:24,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17315 states. [2020-11-12 12:20:25,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17315 to 14339. [2020-11-12 12:20:25,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14339 states, 13619 states have (on average 1.3675012849695278) internal successors, (18624), 14338 states have internal predecessors, (18624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:25,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14339 states to 14339 states and 18624 transitions. [2020-11-12 12:20:25,237 INFO L78 Accepts]: Start accepts. Automaton has 14339 states and 18624 transitions. Word has length 50 [2020-11-12 12:20:25,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:25,238 INFO L481 AbstractCegarLoop]: Abstraction has 14339 states and 18624 transitions. [2020-11-12 12:20:25,238 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 12:20:25,243 INFO L276 IsEmpty]: Start isEmpty. Operand 14339 states and 18624 transitions. [2020-11-12 12:20:25,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 12:20:25,260 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:25,260 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 12:20:25,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:20:25,261 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:25,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:25,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1784032588, now seen corresponding path program 1 times [2020-11-12 12:20:25,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:25,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105155941] [2020-11-12 12:20:25,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:25,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:25,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105155941] [2020-11-12 12:20:25,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:25,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:20:25,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326814551] [2020-11-12 12:20:25,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:20:25,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:25,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:20:25,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:20:25,429 INFO L87 Difference]: Start difference. First operand 14339 states and 18624 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 12:20:25,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:25,582 INFO L93 Difference]: Finished difference Result 14803 states and 19328 transitions. [2020-11-12 12:20:25,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:20:25,583 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 12:20:25,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:25,604 INFO L225 Difference]: With dead ends: 14803 [2020-11-12 12:20:25,604 INFO L226 Difference]: Without dead ends: 11439 [2020-11-12 12:20:25,605 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 12:20:25,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11439 states. [2020-11-12 12:20:25,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11439 to 11439. [2020-11-12 12:20:25,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11439 states, 10879 states have (on average 1.376505193492049) internal successors, (14975), 11438 states have internal predecessors, (14975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:25,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11439 states to 11439 states and 14975 transitions. [2020-11-12 12:20:25,848 INFO L78 Accepts]: Start accepts. Automaton has 11439 states and 14975 transitions. Word has length 51 [2020-11-12 12:20:25,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:25,849 INFO L481 AbstractCegarLoop]: Abstraction has 11439 states and 14975 transitions. [2020-11-12 12:20:25,849 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 12:20:25,849 INFO L276 IsEmpty]: Start isEmpty. Operand 11439 states and 14975 transitions. [2020-11-12 12:20:25,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-12 12:20:25,866 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:25,867 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 12:20:25,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:20:25,867 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:25,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:25,868 INFO L82 PathProgramCache]: Analyzing trace with hash 2111782584, now seen corresponding path program 1 times [2020-11-12 12:20:25,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:25,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075795849] [2020-11-12 12:20:25,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:26,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:26,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075795849] [2020-11-12 12:20:26,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:26,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:20:26,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525170579] [2020-11-12 12:20:26,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:20:26,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:26,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:20:26,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:20:26,045 INFO L87 Difference]: Start difference. First operand 11439 states and 14975 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 12:20:26,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:26,612 INFO L93 Difference]: Finished difference Result 29852 states and 38242 transitions. [2020-11-12 12:20:26,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-12 12:20:26,613 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 12:20:26,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:26,637 INFO L225 Difference]: With dead ends: 29852 [2020-11-12 12:20:26,637 INFO L226 Difference]: Without dead ends: 10012 [2020-11-12 12:20:26,637 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-11-12 12:20:26,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10012 states. [2020-11-12 12:20:26,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10012 to 8067. [2020-11-12 12:20:26,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8067 states, 7667 states have (on average 1.348897874005478) internal successors, (10342), 8066 states have internal predecessors, (10342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:26,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8067 states to 8067 states and 10342 transitions. [2020-11-12 12:20:26,811 INFO L78 Accepts]: Start accepts. Automaton has 8067 states and 10342 transitions. Word has length 52 [2020-11-12 12:20:26,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:26,811 INFO L481 AbstractCegarLoop]: Abstraction has 8067 states and 10342 transitions. [2020-11-12 12:20:26,811 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 12:20:26,811 INFO L276 IsEmpty]: Start isEmpty. Operand 8067 states and 10342 transitions. [2020-11-12 12:20:26,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-12 12:20:26,821 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:26,821 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 12:20:26,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 12:20:26,822 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:26,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:26,823 INFO L82 PathProgramCache]: Analyzing trace with hash 335025175, now seen corresponding path program 1 times [2020-11-12 12:20:26,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:26,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908585327] [2020-11-12 12:20:26,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:26,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:26,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908585327] [2020-11-12 12:20:26,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:26,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:20:26,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020827428] [2020-11-12 12:20:26,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:20:26,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:26,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:20:26,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:20:26,940 INFO L87 Difference]: Start difference. First operand 8067 states and 10342 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 12:20:27,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:27,104 INFO L93 Difference]: Finished difference Result 9174 states and 11363 transitions. [2020-11-12 12:20:27,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:20:27,105 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 12:20:27,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:27,121 INFO L225 Difference]: With dead ends: 9174 [2020-11-12 12:20:27,121 INFO L226 Difference]: Without dead ends: 7966 [2020-11-12 12:20:27,122 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:20:27,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7966 states. [2020-11-12 12:20:27,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7966 to 7966. [2020-11-12 12:20:27,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7966 states, 7570 states have (on average 1.341215323645971) internal successors, (10153), 7965 states have internal predecessors, (10153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:27,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7966 states to 7966 states and 10153 transitions. [2020-11-12 12:20:27,269 INFO L78 Accepts]: Start accepts. Automaton has 7966 states and 10153 transitions. Word has length 53 [2020-11-12 12:20:27,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:27,270 INFO L481 AbstractCegarLoop]: Abstraction has 7966 states and 10153 transitions. [2020-11-12 12:20:27,270 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 12:20:27,270 INFO L276 IsEmpty]: Start isEmpty. Operand 7966 states and 10153 transitions. [2020-11-12 12:20:27,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-12 12:20:27,280 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:27,280 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 12:20:27,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 12:20:27,280 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:27,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:27,281 INFO L82 PathProgramCache]: Analyzing trace with hash 868960166, now seen corresponding path program 1 times [2020-11-12 12:20:27,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:27,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006137341] [2020-11-12 12:20:27,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:27,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:27,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006137341] [2020-11-12 12:20:27,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:27,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:20:27,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927506479] [2020-11-12 12:20:27,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:20:27,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:27,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:20:27,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:20:27,428 INFO L87 Difference]: Start difference. First operand 7966 states and 10153 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 12:20:27,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:27,627 INFO L93 Difference]: Finished difference Result 8760 states and 10889 transitions. [2020-11-12 12:20:27,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:20:27,628 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 12:20:27,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:27,643 INFO L225 Difference]: With dead ends: 8760 [2020-11-12 12:20:27,643 INFO L226 Difference]: Without dead ends: 7142 [2020-11-12 12:20:27,644 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 12:20:27,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7142 states. [2020-11-12 12:20:27,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7142 to 7142. [2020-11-12 12:20:27,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7142 states, 6782 states have (on average 1.29991153052197) internal successors, (8816), 7141 states have internal predecessors, (8816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:27,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7142 states to 7142 states and 8816 transitions. [2020-11-12 12:20:27,789 INFO L78 Accepts]: Start accepts. Automaton has 7142 states and 8816 transitions. Word has length 54 [2020-11-12 12:20:27,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:27,790 INFO L481 AbstractCegarLoop]: Abstraction has 7142 states and 8816 transitions. [2020-11-12 12:20:27,790 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 12:20:27,790 INFO L276 IsEmpty]: Start isEmpty. Operand 7142 states and 8816 transitions. [2020-11-12 12:20:27,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-12 12:20:27,798 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:27,798 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 12:20:27,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-12 12:20:27,798 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:27,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:27,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1623299884, now seen corresponding path program 1 times [2020-11-12 12:20:27,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:27,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59896633] [2020-11-12 12:20:27,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:28,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:28,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59896633] [2020-11-12 12:20:28,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:28,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 12:20:28,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297722557] [2020-11-12 12:20:28,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 12:20:28,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:28,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 12:20:28,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 12:20:28,032 INFO L87 Difference]: Start difference. First operand 7142 states and 8816 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 12:20:28,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:28,282 INFO L93 Difference]: Finished difference Result 6650 states and 7971 transitions. [2020-11-12 12:20:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-12 12:20:28,283 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 12:20:28,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:28,294 INFO L225 Difference]: With dead ends: 6650 [2020-11-12 12:20:28,294 INFO L226 Difference]: Without dead ends: 4701 [2020-11-12 12:20:28,295 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-12 12:20:28,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4701 states. [2020-11-12 12:20:28,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4701 to 4701. [2020-11-12 12:20:28,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4701 states, 4458 states have (on average 1.209062359802602) internal successors, (5390), 4700 states have internal predecessors, (5390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:28,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4701 states to 4701 states and 5390 transitions. [2020-11-12 12:20:28,397 INFO L78 Accepts]: Start accepts. Automaton has 4701 states and 5390 transitions. Word has length 55 [2020-11-12 12:20:28,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:28,398 INFO L481 AbstractCegarLoop]: Abstraction has 4701 states and 5390 transitions. [2020-11-12 12:20:28,398 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 12:20:28,398 INFO L276 IsEmpty]: Start isEmpty. Operand 4701 states and 5390 transitions. [2020-11-12 12:20:28,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-12 12:20:28,404 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:28,405 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 12:20:28,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-12 12:20:28,405 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:28,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:28,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1130501845, now seen corresponding path program 1 times [2020-11-12 12:20:28,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:28,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165238689] [2020-11-12 12:20:28,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:28,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:28,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165238689] [2020-11-12 12:20:28,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:28,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-12 12:20:28,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12157444] [2020-11-12 12:20:28,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-12 12:20:28,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:28,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-12 12:20:28,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-12 12:20:28,576 INFO L87 Difference]: Start difference. First operand 4701 states and 5390 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 12:20:28,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:28,821 INFO L93 Difference]: Finished difference Result 3308 states and 3700 transitions. [2020-11-12 12:20:28,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-12 12:20:28,822 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 12:20:28,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:28,825 INFO L225 Difference]: With dead ends: 3308 [2020-11-12 12:20:28,825 INFO L226 Difference]: Without dead ends: 1546 [2020-11-12 12:20:28,826 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 12:20:28,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2020-11-12 12:20:28,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1546. [2020-11-12 12:20:28,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1546 states, 1465 states have (on average 1.0853242320819112) internal successors, (1590), 1545 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:28,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 1590 transitions. [2020-11-12 12:20:28,856 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 1590 transitions. Word has length 57 [2020-11-12 12:20:28,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:28,856 INFO L481 AbstractCegarLoop]: Abstraction has 1546 states and 1590 transitions. [2020-11-12 12:20:28,857 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 12:20:28,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 1590 transitions. [2020-11-12 12:20:28,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-12 12:20:28,859 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:28,859 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 12:20:28,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-12 12:20:28,859 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:28,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:28,860 INFO L82 PathProgramCache]: Analyzing trace with hash 846060426, now seen corresponding path program 1 times [2020-11-12 12:20:28,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:28,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681361288] [2020-11-12 12:20:28,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:28,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:28,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681361288] [2020-11-12 12:20:28,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:28,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:20:28,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249407331] [2020-11-12 12:20:28,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:20:28,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:28,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:20:28,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:20:28,989 INFO L87 Difference]: Start difference. First operand 1546 states and 1590 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 12:20:29,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:29,106 INFO L93 Difference]: Finished difference Result 2557 states and 2592 transitions. [2020-11-12 12:20:29,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:20:29,106 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 12:20:29,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:29,110 INFO L225 Difference]: With dead ends: 2557 [2020-11-12 12:20:29,110 INFO L226 Difference]: Without dead ends: 1442 [2020-11-12 12:20:29,111 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:20:29,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2020-11-12 12:20:29,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 1442. [2020-11-12 12:20:29,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1361 states have (on average 1.05878030859662) internal successors, (1441), 1441 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:29,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 1441 transitions. [2020-11-12 12:20:29,140 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 1441 transitions. Word has length 59 [2020-11-12 12:20:29,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:29,140 INFO L481 AbstractCegarLoop]: Abstraction has 1442 states and 1441 transitions. [2020-11-12 12:20:29,140 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 12:20:29,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 1441 transitions. [2020-11-12 12:20:29,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-12 12:20:29,149 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:20:29,149 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 12:20:29,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-12 12:20:29,149 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:20:29,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:20:29,150 INFO L82 PathProgramCache]: Analyzing trace with hash 917265090, now seen corresponding path program 2 times [2020-11-12 12:20:29,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:20:29,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352019883] [2020-11-12 12:20:29,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:20:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:20:29,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:20:29,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352019883] [2020-11-12 12:20:29,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:20:29,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:20:29,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415196793] [2020-11-12 12:20:29,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:20:29,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:20:29,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:20:29,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:20:29,314 INFO L87 Difference]: Start difference. First operand 1442 states and 1441 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 12:20:29,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:20:29,409 INFO L93 Difference]: Finished difference Result 1118 states and 1117 transitions. [2020-11-12 12:20:29,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:20:29,410 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 12:20:29,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:20:29,410 INFO L225 Difference]: With dead ends: 1118 [2020-11-12 12:20:29,410 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:20:29,411 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:20:29,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:20:29,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:20:29,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:20:29,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:20:29,412 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2020-11-12 12:20:29,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:20:29,412 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:20:29,412 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 12:20:29,413 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:20:29,413 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:20:29,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-12 12:20:29,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:20:29 BasicIcfg [2020-11-12 12:20:29,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:20:29,421 INFO L168 Benchmark]: Toolchain (without parser) took 29359.79 ms. Allocated memory was 308.3 MB in the beginning and 9.3 GB in the end (delta: 9.0 GB). Free memory was 281.8 MB in the beginning and 8.3 GB in the end (delta: -8.0 GB). Peak memory consumption was 977.7 MB. Max. memory is 16.0 GB. [2020-11-12 12:20:29,421 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 308.3 MB. Free memory is still 277.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:20:29,422 INFO L168 Benchmark]: CACSL2BoogieTranslator took 777.61 ms. Allocated memory is still 308.3 MB. Free memory was 281.1 MB in the beginning and 279.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.0 GB. [2020-11-12 12:20:29,423 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.30 ms. Allocated memory is still 308.3 MB. Free memory was 279.7 MB in the beginning and 278.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:20:29,424 INFO L168 Benchmark]: Boogie Preprocessor took 29.72 ms. Allocated memory is still 308.3 MB. Free memory was 278.6 MB in the beginning and 276.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:20:29,424 INFO L168 Benchmark]: RCFGBuilder took 635.77 ms. Allocated memory is still 308.3 MB. Free memory was 276.6 MB in the beginning and 251.4 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2020-11-12 12:20:29,425 INFO L168 Benchmark]: TraceAbstraction took 27848.29 ms. Allocated memory was 308.3 MB in the beginning and 9.3 GB in the end (delta: 9.0 GB). Free memory was 251.4 MB in the beginning and 8.3 GB in the end (delta: -8.1 GB). Peak memory consumption was 944.5 MB. Max. memory is 16.0 GB. [2020-11-12 12:20:29,429 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 308.3 MB. Free memory is still 277.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 777.61 ms. Allocated memory is still 308.3 MB. Free memory was 281.1 MB in the beginning and 279.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 50.30 ms. Allocated memory is still 308.3 MB. Free memory was 279.7 MB in the beginning and 278.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.72 ms. Allocated memory is still 308.3 MB. Free memory was 278.6 MB in the beginning and 276.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 635.77 ms. Allocated memory is still 308.3 MB. Free memory was 276.6 MB in the beginning and 251.4 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 27848.29 ms. Allocated memory was 308.3 MB in the beginning and 9.3 GB in the end (delta: 9.0 GB). Free memory was 251.4 MB in the beginning and 8.3 GB in the end (delta: -8.1 GB). Peak memory consumption was 944.5 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: 27.7s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 15.4s, HoareTripleCheckerStatistics: 942 SDtfs, 1336 SDslu, 3513 SDs, 0 SdLazy, 436 SolverSat, 85 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=219588occurred 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, 4921 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s 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...