/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 00:17:08,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 00:17:08,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 00:17:08,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 00:17:08,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 00:17:08,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 00:17:08,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 00:17:08,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 00:17:08,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 00:17:08,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 00:17:08,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 00:17:08,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 00:17:08,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 00:17:08,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 00:17:08,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 00:17:08,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 00:17:08,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 00:17:08,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 00:17:08,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 00:17:08,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 00:17:08,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 00:17:08,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 00:17:08,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 00:17:08,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 00:17:08,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-17 00:17:08,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 00:17:08,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 00:17:08,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 00:17:08,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 00:17:08,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 00:17:08,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 00:17:09,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 00:17:09,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 00:17:09,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 00:17:09,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 00:17:09,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 00:17:09,003 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-17 00:17:09,028 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 00:17:09,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 00:17:09,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 00:17:09,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 00:17:09,030 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 00:17:09,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 00:17:09,031 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 00:17:09,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 00:17:09,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 00:17:09,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 00:17:09,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 00:17:09,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 00:17:09,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 00:17:09,032 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 00:17:09,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 00:17:09,033 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 00:17:09,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 00:17:09,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 00:17:09,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 00:17:09,034 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 00:17:09,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 00:17:09,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 00:17:09,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 00:17:09,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-17 00:17:09,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 00:17:09,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 00:17:09,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 00:17:09,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 00:17:09,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-17 00:17:09,036 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-17 00:17:09,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 00:17:09,500 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 00:17:09,504 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 00:17:09,506 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 00:17:09,506 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 00:17:09,507 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2020-09-17 00:17:09,601 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c09f8961b/ef10bc2b3280451db82f74f8fe9889f1/FLAG3bb5eb98f [2020-09-17 00:17:10,277 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 00:17:10,280 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2020-09-17 00:17:10,307 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c09f8961b/ef10bc2b3280451db82f74f8fe9889f1/FLAG3bb5eb98f [2020-09-17 00:17:10,542 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c09f8961b/ef10bc2b3280451db82f74f8fe9889f1 [2020-09-17 00:17:10,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 00:17:10,562 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 00:17:10,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 00:17:10,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 00:17:10,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 00:17:10,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 12:17:10" (1/1) ... [2020-09-17 00:17:10,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c86ed0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:17:10, skipping insertion in model container [2020-09-17 00:17:10,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 12:17:10" (1/1) ... [2020-09-17 00:17:10,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 00:17:10,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 00:17:11,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 00:17:11,141 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 00:17:11,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 00:17:11,270 INFO L208 MainTranslator]: Completed translation [2020-09-17 00:17:11,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:17:11 WrapperNode [2020-09-17 00:17:11,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 00:17:11,272 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 00:17:11,272 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 00:17:11,272 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 00:17:11,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:17:11" (1/1) ... [2020-09-17 00:17:11,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:17:11" (1/1) ... [2020-09-17 00:17:11,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 00:17:11,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 00:17:11,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 00:17:11,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 00:17:11,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:17:11" (1/1) ... [2020-09-17 00:17:11,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:17:11" (1/1) ... [2020-09-17 00:17:11,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:17:11" (1/1) ... [2020-09-17 00:17:11,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:17:11" (1/1) ... [2020-09-17 00:17:11,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:17:11" (1/1) ... [2020-09-17 00:17:11,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:17:11" (1/1) ... [2020-09-17 00:17:11,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:17:11" (1/1) ... [2020-09-17 00:17:11,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 00:17:11,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 00:17:11,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 00:17:11,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 00:17:11,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:17:11" (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 [2020-09-17 00:17:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 00:17:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-17 00:17:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 00:17:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 00:17:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-17 00:17:11,447 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-17 00:17:11,447 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-17 00:17:11,448 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-17 00:17:11,448 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-17 00:17:11,448 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-17 00:17:11,448 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-17 00:17:11,448 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-17 00:17:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-17 00:17:11,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 00:17:11,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 00:17:11,452 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 00:17:11,896 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 00:17:11,897 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-17 00:17:11,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 12:17:11 BoogieIcfgContainer [2020-09-17 00:17:11,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 00:17:11,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 00:17:11,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 00:17:11,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 00:17:11,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 12:17:10" (1/3) ... [2020-09-17 00:17:11,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44bb3143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 12:17:11, skipping insertion in model container [2020-09-17 00:17:11,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 12:17:11" (2/3) ... [2020-09-17 00:17:11,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44bb3143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 12:17:11, skipping insertion in model container [2020-09-17 00:17:11,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 12:17:11" (3/3) ... [2020-09-17 00:17:11,912 INFO L109 eAbstractionObserver]: Analyzing ICFG safe019_tso.oepc.i [2020-09-17 00:17:11,923 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 00:17:11,924 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-17 00:17:11,934 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-17 00:17:11,935 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 00:17:11,967 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,967 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,967 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,968 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,968 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,968 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,969 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,969 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,969 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,969 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,970 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,970 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,971 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,971 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,971 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,971 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,972 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,973 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,973 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,973 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,973 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,974 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,978 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,978 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,979 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,979 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,985 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,986 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,986 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,986 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,990 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,991 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,993 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,993 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,994 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:11,994 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 00:17:12,018 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-17 00:17:12,041 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 00:17:12,041 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 00:17:12,041 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 00:17:12,041 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 00:17:12,041 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 00:17:12,041 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 00:17:12,042 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 00:17:12,042 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 00:17:12,057 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 81 transitions, 182 flow [2020-09-17 00:17:12,059 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-09-17 00:17:12,120 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-09-17 00:17:12,121 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 00:17:12,127 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-17 00:17:12,130 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-09-17 00:17:12,155 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-09-17 00:17:12,156 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 00:17:12,156 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-17 00:17:12,159 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-09-17 00:17:12,160 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 00:17:14,193 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3093 [2020-09-17 00:17:14,193 INFO L214 etLargeBlockEncoding]: Total number of compositions: 65 [2020-09-17 00:17:14,198 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2020-09-17 00:17:14,247 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-09-17 00:17:14,250 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-09-17 00:17:14,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-17 00:17:14,262 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:17:14,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:17:14,263 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:17:14,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:17:14,271 INFO L82 PathProgramCache]: Analyzing trace with hash -2005095105, now seen corresponding path program 1 times [2020-09-17 00:17:14,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:17:14,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100421979] [2020-09-17 00:17:14,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:17:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:17:14,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:17:14,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100421979] [2020-09-17 00:17:14,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:17:14,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 00:17:14,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712037609] [2020-09-17 00:17:14,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:17:14,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:17:14,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:17:14,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:17:14,596 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-09-17 00:17:14,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:17:14,666 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-09-17 00:17:14,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:17:14,669 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-17 00:17:14,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:17:14,694 INFO L225 Difference]: With dead ends: 670 [2020-09-17 00:17:14,695 INFO L226 Difference]: Without dead ends: 526 [2020-09-17 00:17:14,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:17:14,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-09-17 00:17:14,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-09-17 00:17:14,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-09-17 00:17:14,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-09-17 00:17:14,823 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-09-17 00:17:14,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:17:14,826 INFO L479 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-09-17 00:17:14,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:17:14,826 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-09-17 00:17:14,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-17 00:17:14,831 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:17:14,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:17:14,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 00:17:14,833 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:17:14,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:17:14,833 INFO L82 PathProgramCache]: Analyzing trace with hash -2027599793, now seen corresponding path program 1 times [2020-09-17 00:17:14,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:17:14,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336955163] [2020-09-17 00:17:14,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:17:14,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:17:14,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:17:14,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336955163] [2020-09-17 00:17:14,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:17:14,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:17:14,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124790501] [2020-09-17 00:17:14,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:17:14,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:17:14,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:17:14,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:17:14,950 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-09-17 00:17:14,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:17:14,982 INFO L93 Difference]: Finished difference Result 682 states and 2180 transitions. [2020-09-17 00:17:14,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 00:17:14,982 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-17 00:17:14,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:17:14,987 INFO L225 Difference]: With dead ends: 682 [2020-09-17 00:17:14,987 INFO L226 Difference]: Without dead ends: 394 [2020-09-17 00:17:14,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:17:14,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-09-17 00:17:15,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-09-17 00:17:15,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-17 00:17:15,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1224 transitions. [2020-09-17 00:17:15,014 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1224 transitions. Word has length 11 [2020-09-17 00:17:15,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:17:15,014 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 1224 transitions. [2020-09-17 00:17:15,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:17:15,015 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1224 transitions. [2020-09-17 00:17:15,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-17 00:17:15,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:17:15,020 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:17:15,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 00:17:15,021 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:17:15,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:17:15,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1004375926, now seen corresponding path program 1 times [2020-09-17 00:17:15,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:17:15,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771955884] [2020-09-17 00:17:15,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:17:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:17:15,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:17:15,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771955884] [2020-09-17 00:17:15,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:17:15,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 00:17:15,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431884838] [2020-09-17 00:17:15,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:17:15,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:17:15,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:17:15,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:17:15,107 INFO L87 Difference]: Start difference. First operand 394 states and 1224 transitions. Second operand 3 states. [2020-09-17 00:17:15,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:17:15,119 INFO L93 Difference]: Finished difference Result 386 states and 1190 transitions. [2020-09-17 00:17:15,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:17:15,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-17 00:17:15,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:17:15,123 INFO L225 Difference]: With dead ends: 386 [2020-09-17 00:17:15,123 INFO L226 Difference]: Without dead ends: 386 [2020-09-17 00:17:15,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:17:15,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-09-17 00:17:15,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2020-09-17 00:17:15,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-09-17 00:17:15,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 1190 transitions. [2020-09-17 00:17:15,137 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 1190 transitions. Word has length 12 [2020-09-17 00:17:15,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:17:15,137 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 1190 transitions. [2020-09-17 00:17:15,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:17:15,138 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 1190 transitions. [2020-09-17 00:17:15,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-17 00:17:15,139 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:17:15,140 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:17:15,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 00:17:15,140 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:17:15,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:17:15,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1071238165, now seen corresponding path program 1 times [2020-09-17 00:17:15,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:17:15,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435572659] [2020-09-17 00:17:15,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:17:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:17:15,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:17:15,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435572659] [2020-09-17 00:17:15,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:17:15,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:17:15,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467539306] [2020-09-17 00:17:15,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:17:15,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:17:15,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:17:15,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:17:15,204 INFO L87 Difference]: Start difference. First operand 386 states and 1190 transitions. Second operand 3 states. [2020-09-17 00:17:15,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:17:15,223 INFO L93 Difference]: Finished difference Result 466 states and 1378 transitions. [2020-09-17 00:17:15,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:17:15,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-09-17 00:17:15,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:17:15,227 INFO L225 Difference]: With dead ends: 466 [2020-09-17 00:17:15,227 INFO L226 Difference]: Without dead ends: 402 [2020-09-17 00:17:15,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:17:15,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-09-17 00:17:15,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 370. [2020-09-17 00:17:15,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-09-17 00:17:15,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1098 transitions. [2020-09-17 00:17:15,240 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1098 transitions. Word has length 13 [2020-09-17 00:17:15,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:17:15,240 INFO L479 AbstractCegarLoop]: Abstraction has 370 states and 1098 transitions. [2020-09-17 00:17:15,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:17:15,241 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1098 transitions. [2020-09-17 00:17:15,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-17 00:17:15,242 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:17:15,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:17:15,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 00:17:15,242 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:17:15,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:17:15,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1070883463, now seen corresponding path program 1 times [2020-09-17 00:17:15,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:17:15,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469490891] [2020-09-17 00:17:15,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:17:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:17:15,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:17:15,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469490891] [2020-09-17 00:17:15,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:17:15,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 00:17:15,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373569014] [2020-09-17 00:17:15,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 00:17:15,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:17:15,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 00:17:15,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:17:15,330 INFO L87 Difference]: Start difference. First operand 370 states and 1098 transitions. Second operand 3 states. [2020-09-17 00:17:15,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:17:15,339 INFO L93 Difference]: Finished difference Result 358 states and 1054 transitions. [2020-09-17 00:17:15,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 00:17:15,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-09-17 00:17:15,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:17:15,342 INFO L225 Difference]: With dead ends: 358 [2020-09-17 00:17:15,342 INFO L226 Difference]: Without dead ends: 358 [2020-09-17 00:17:15,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 00:17:15,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-09-17 00:17:15,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-09-17 00:17:15,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-09-17 00:17:15,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1054 transitions. [2020-09-17 00:17:15,354 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1054 transitions. Word has length 13 [2020-09-17 00:17:15,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:17:15,354 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 1054 transitions. [2020-09-17 00:17:15,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 00:17:15,354 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1054 transitions. [2020-09-17 00:17:15,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-17 00:17:15,355 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:17:15,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:17:15,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-17 00:17:15,356 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:17:15,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:17:15,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1189218785, now seen corresponding path program 1 times [2020-09-17 00:17:15,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:17:15,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800028706] [2020-09-17 00:17:15,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:17:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:17:15,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:17:15,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800028706] [2020-09-17 00:17:15,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:17:15,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:17:15,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000094668] [2020-09-17 00:17:15,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:17:15,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:17:15,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:17:15,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:17:15,418 INFO L87 Difference]: Start difference. First operand 358 states and 1054 transitions. Second operand 4 states. [2020-09-17 00:17:15,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:17:15,441 INFO L93 Difference]: Finished difference Result 514 states and 1482 transitions. [2020-09-17 00:17:15,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 00:17:15,441 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-09-17 00:17:15,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:17:15,444 INFO L225 Difference]: With dead ends: 514 [2020-09-17 00:17:15,444 INFO L226 Difference]: Without dead ends: 274 [2020-09-17 00:17:15,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:17:15,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-17 00:17:15,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-09-17 00:17:15,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-09-17 00:17:15,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 775 transitions. [2020-09-17 00:17:15,453 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 775 transitions. Word has length 14 [2020-09-17 00:17:15,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:17:15,453 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 775 transitions. [2020-09-17 00:17:15,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:17:15,454 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 775 transitions. [2020-09-17 00:17:15,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-17 00:17:15,454 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:17:15,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:17:15,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-17 00:17:15,455 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:17:15,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:17:15,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1162350155, now seen corresponding path program 2 times [2020-09-17 00:17:15,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:17:15,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935178932] [2020-09-17 00:17:15,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:17:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:17:15,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:17:15,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935178932] [2020-09-17 00:17:15,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:17:15,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 00:17:15,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706212528] [2020-09-17 00:17:15,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:17:15,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:17:15,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:17:15,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:17:15,553 INFO L87 Difference]: Start difference. First operand 274 states and 775 transitions. Second operand 4 states. [2020-09-17 00:17:15,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:17:15,591 INFO L93 Difference]: Finished difference Result 345 states and 911 transitions. [2020-09-17 00:17:15,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 00:17:15,592 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-09-17 00:17:15,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:17:15,594 INFO L225 Difference]: With dead ends: 345 [2020-09-17 00:17:15,594 INFO L226 Difference]: Without dead ends: 252 [2020-09-17 00:17:15,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:17:15,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-09-17 00:17:15,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-09-17 00:17:15,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-09-17 00:17:15,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 675 transitions. [2020-09-17 00:17:15,602 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 675 transitions. Word has length 14 [2020-09-17 00:17:15,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:17:15,602 INFO L479 AbstractCegarLoop]: Abstraction has 252 states and 675 transitions. [2020-09-17 00:17:15,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:17:15,603 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 675 transitions. [2020-09-17 00:17:15,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-17 00:17:15,604 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:17:15,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:17:15,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-17 00:17:15,604 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:17:15,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:17:15,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1647463604, now seen corresponding path program 1 times [2020-09-17 00:17:15,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:17:15,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034908797] [2020-09-17 00:17:15,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:17:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:17:15,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:17:15,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034908797] [2020-09-17 00:17:15,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:17:15,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:17:15,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796321219] [2020-09-17 00:17:15,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 00:17:15,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:17:15,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 00:17:15,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:17:15,713 INFO L87 Difference]: Start difference. First operand 252 states and 675 transitions. Second operand 5 states. [2020-09-17 00:17:15,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:17:15,766 INFO L93 Difference]: Finished difference Result 278 states and 685 transitions. [2020-09-17 00:17:15,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 00:17:15,767 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-17 00:17:15,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:17:15,771 INFO L225 Difference]: With dead ends: 278 [2020-09-17 00:17:15,772 INFO L226 Difference]: Without dead ends: 203 [2020-09-17 00:17:15,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-17 00:17:15,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-09-17 00:17:15,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-09-17 00:17:15,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-09-17 00:17:15,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 492 transitions. [2020-09-17 00:17:15,787 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 492 transitions. Word has length 15 [2020-09-17 00:17:15,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:17:15,788 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 492 transitions. [2020-09-17 00:17:15,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 00:17:15,788 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 492 transitions. [2020-09-17 00:17:15,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-17 00:17:15,790 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:17:15,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:17:15,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-17 00:17:15,790 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:17:15,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:17:15,791 INFO L82 PathProgramCache]: Analyzing trace with hash -469082430, now seen corresponding path program 1 times [2020-09-17 00:17:15,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:17:15,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042287701] [2020-09-17 00:17:15,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:17:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:17:15,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:17:15,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042287701] [2020-09-17 00:17:15,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:17:15,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 00:17:15,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296457070] [2020-09-17 00:17:15,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-17 00:17:15,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:17:15,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-17 00:17:15,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-17 00:17:15,916 INFO L87 Difference]: Start difference. First operand 203 states and 492 transitions. Second operand 6 states. [2020-09-17 00:17:15,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:17:15,981 INFO L93 Difference]: Finished difference Result 200 states and 461 transitions. [2020-09-17 00:17:15,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-17 00:17:15,981 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-09-17 00:17:15,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:17:15,982 INFO L225 Difference]: With dead ends: 200 [2020-09-17 00:17:15,983 INFO L226 Difference]: Without dead ends: 162 [2020-09-17 00:17:15,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-17 00:17:15,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-09-17 00:17:15,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-09-17 00:17:15,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-17 00:17:15,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 375 transitions. [2020-09-17 00:17:15,988 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 375 transitions. Word has length 16 [2020-09-17 00:17:15,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:17:15,988 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 375 transitions. [2020-09-17 00:17:15,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-17 00:17:15,989 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 375 transitions. [2020-09-17 00:17:15,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 00:17:15,990 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:17:15,990 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:17:15,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-17 00:17:15,990 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:17:15,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:17:15,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1305224855, now seen corresponding path program 1 times [2020-09-17 00:17:15,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:17:15,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021665735] [2020-09-17 00:17:15,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:17:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:17:16,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:17:16,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021665735] [2020-09-17 00:17:16,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:17:16,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:17:16,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13944978] [2020-09-17 00:17:16,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:17:16,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:17:16,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:17:16,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:17:16,047 INFO L87 Difference]: Start difference. First operand 162 states and 375 transitions. Second operand 4 states. [2020-09-17 00:17:16,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:17:16,072 INFO L93 Difference]: Finished difference Result 194 states and 439 transitions. [2020-09-17 00:17:16,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 00:17:16,072 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-09-17 00:17:16,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:17:16,074 INFO L225 Difference]: With dead ends: 194 [2020-09-17 00:17:16,074 INFO L226 Difference]: Without dead ends: 127 [2020-09-17 00:17:16,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:17:16,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-09-17 00:17:16,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-09-17 00:17:16,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-17 00:17:16,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-09-17 00:17:16,078 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 18 [2020-09-17 00:17:16,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:17:16,079 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-09-17 00:17:16,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:17:16,079 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-09-17 00:17:16,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 00:17:16,080 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:17:16,080 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:17:16,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-17 00:17:16,080 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:17:16,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:17:16,081 INFO L82 PathProgramCache]: Analyzing trace with hash 483879941, now seen corresponding path program 2 times [2020-09-17 00:17:16,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:17:16,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506187568] [2020-09-17 00:17:16,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:17:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:17:16,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:17:16,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506187568] [2020-09-17 00:17:16,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:17:16,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 00:17:16,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503247734] [2020-09-17 00:17:16,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 00:17:16,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:17:16,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 00:17:16,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-17 00:17:16,181 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 7 states. [2020-09-17 00:17:16,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:17:16,251 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2020-09-17 00:17:16,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-17 00:17:16,252 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-09-17 00:17:16,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:17:16,253 INFO L225 Difference]: With dead ends: 120 [2020-09-17 00:17:16,253 INFO L226 Difference]: Without dead ends: 71 [2020-09-17 00:17:16,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-17 00:17:16,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-17 00:17:16,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-09-17 00:17:16,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-17 00:17:16,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-09-17 00:17:16,257 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2020-09-17 00:17:16,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:17:16,257 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-09-17 00:17:16,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 00:17:16,257 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-09-17 00:17:16,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-17 00:17:16,258 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 00:17:16,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 00:17:16,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-17 00:17:16,258 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 00:17:16,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 00:17:16,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1087350585, now seen corresponding path program 1 times [2020-09-17 00:17:16,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 00:17:16,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314705259] [2020-09-17 00:17:16,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 00:17:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 00:17:16,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 00:17:16,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314705259] [2020-09-17 00:17:16,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 00:17:16,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 00:17:16,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221147442] [2020-09-17 00:17:16,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 00:17:16,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 00:17:16,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 00:17:16,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 00:17:16,316 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-09-17 00:17:16,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 00:17:16,328 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-09-17 00:17:16,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 00:17:16,329 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-09-17 00:17:16,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 00:17:16,329 INFO L225 Difference]: With dead ends: 70 [2020-09-17 00:17:16,329 INFO L226 Difference]: Without dead ends: 0 [2020-09-17 00:17:16,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-17 00:17:16,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-17 00:17:16,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-17 00:17:16,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-17 00:17:16,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-17 00:17:16,331 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-09-17 00:17:16,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 00:17:16,331 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-17 00:17:16,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 00:17:16,331 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-17 00:17:16,332 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-17 00:17:16,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-17 00:17:16,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 12:17:16 BasicIcfg [2020-09-17 00:17:16,336 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 00:17:16,340 INFO L168 Benchmark]: Toolchain (without parser) took 5782.03 ms. Allocated memory was 138.9 MB in the beginning and 293.1 MB in the end (delta: 154.1 MB). Free memory was 100.4 MB in the beginning and 168.7 MB in the end (delta: -68.3 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. [2020-09-17 00:17:16,341 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-17 00:17:16,341 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.81 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 99.8 MB in the beginning and 157.8 MB in the end (delta: -58.0 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-09-17 00:17:16,342 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.10 ms. Allocated memory is still 201.3 MB. Free memory was 157.1 MB in the beginning and 155.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-17 00:17:16,343 INFO L168 Benchmark]: Boogie Preprocessor took 32.50 ms. Allocated memory is still 201.3 MB. Free memory was 155.2 MB in the beginning and 153.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-17 00:17:16,344 INFO L168 Benchmark]: RCFGBuilder took 539.64 ms. Allocated memory is still 201.3 MB. Free memory was 153.9 MB in the beginning and 129.3 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-09-17 00:17:16,345 INFO L168 Benchmark]: TraceAbstraction took 4432.66 ms. Allocated memory was 201.3 MB in the beginning and 293.1 MB in the end (delta: 91.8 MB). Free memory was 129.3 MB in the beginning and 168.7 MB in the end (delta: -39.3 MB). Peak memory consumption was 52.4 MB. Max. memory is 7.1 GB. [2020-09-17 00:17:16,348 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 707.81 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 99.8 MB in the beginning and 157.8 MB in the end (delta: -58.0 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.10 ms. Allocated memory is still 201.3 MB. Free memory was 157.1 MB in the beginning and 155.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.50 ms. Allocated memory is still 201.3 MB. Free memory was 155.2 MB in the beginning and 153.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 539.64 ms. Allocated memory is still 201.3 MB. Free memory was 153.9 MB in the beginning and 129.3 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4432.66 ms. Allocated memory was 201.3 MB in the beginning and 293.1 MB in the end (delta: 91.8 MB). Free memory was 129.3 MB in the beginning and 168.7 MB in the end (delta: -39.3 MB). Peak memory consumption was 52.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.1s, 92 ProgramPointsBefore, 38 ProgramPointsAfterwards, 81 TransitionsBefore, 25 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 951 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 25 SemBasedMoverChecksPositive, 44 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 3093 CheckedPairsTotal, 65 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 258 SDtfs, 237 SDslu, 349 SDs, 0 SdLazy, 196 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 34 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 6586 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...