/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe006_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 15:46:03,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 15:46:03,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 15:46:03,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-16 15:46:03,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-16 15:46:03,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-16 15:46:03,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-16 15:46:03,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-16 15:46:03,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-16 15:46:03,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-16 15:46:03,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-16 15:46:03,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-16 15:46:03,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-16 15:46:03,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-16 15:46:03,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-16 15:46:03,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-16 15:46:03,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-16 15:46:03,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-16 15:46:03,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-16 15:46:03,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-16 15:46:03,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-16 15:46:03,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-16 15:46:03,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-16 15:46:03,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-16 15:46:03,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-16 15:46:03,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-16 15:46:03,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-16 15:46:03,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-16 15:46:03,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-16 15:46:03,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-16 15:46:03,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-16 15:46:03,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-16 15:46:03,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-16 15:46:03,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-16 15:46:03,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-16 15:46:03,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-16 15:46:03,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-16 15:46:03,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-16 15:46:03,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-16 15:46:03,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-16 15:46:03,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-16 15:46:03,944 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-06-16 15:46:03,980 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 15:46:03,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 15:46:03,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 15:46:03,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 15:46:03,984 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 15:46:03,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 15:46:03,984 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 15:46:03,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 15:46:03,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 15:46:03,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 15:46:03,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 15:46:03,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 15:46:03,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 15:46:03,986 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 15:46:03,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 15:46:03,986 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 15:46:03,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 15:46:03,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 15:46:03,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 15:46:03,987 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 15:46:03,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 15:46:03,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 15:46:03,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 15:46:03,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 15:46:03,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 15:46:03,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 15:46:03,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 15:46:03,988 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 15:46:03,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 15:46:03,988 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-16 15:46:03,989 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 15:46:04,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 15:46:04,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 15:46:04,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 15:46:04,347 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-16 15:46:04,348 INFO L275 PluginConnector]: CDTParser initialized [2021-06-16 15:46:04,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_tso.oepc.i [2021-06-16 15:46:04,428 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5808bfd68/ac38b8ccb9564c45a00d2673659c2c5e/FLAGe1c7442aa [2021-06-16 15:46:05,009 INFO L306 CDTParser]: Found 1 translation units. [2021-06-16 15:46:05,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_tso.oepc.i [2021-06-16 15:46:05,041 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5808bfd68/ac38b8ccb9564c45a00d2673659c2c5e/FLAGe1c7442aa [2021-06-16 15:46:05,391 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5808bfd68/ac38b8ccb9564c45a00d2673659c2c5e [2021-06-16 15:46:05,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 15:46:05,395 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-16 15:46:05,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-16 15:46:05,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-16 15:46:05,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-16 15:46:05,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 03:46:05" (1/1) ... [2021-06-16 15:46:05,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7398ea38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:46:05, skipping insertion in model container [2021-06-16 15:46:05,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 03:46:05" (1/1) ... [2021-06-16 15:46:05,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-16 15:46:05,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-16 15:46:05,578 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_tso.oepc.i[950,963] [2021-06-16 15:46:05,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 15:46:05,773 INFO L203 MainTranslator]: Completed pre-run [2021-06-16 15:46:05,787 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_tso.oepc.i[950,963] [2021-06-16 15:46:05,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 15:46:05,875 INFO L208 MainTranslator]: Completed translation [2021-06-16 15:46:05,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:46:05 WrapperNode [2021-06-16 15:46:05,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-16 15:46:05,877 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 15:46:05,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 15:46:05,877 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 15:46:05,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:46:05" (1/1) ... [2021-06-16 15:46:05,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:46:05" (1/1) ... [2021-06-16 15:46:05,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 15:46:05,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 15:46:05,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 15:46:05,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 15:46:05,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:46:05" (1/1) ... [2021-06-16 15:46:05,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:46:05" (1/1) ... [2021-06-16 15:46:05,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:46:05" (1/1) ... [2021-06-16 15:46:05,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:46:05" (1/1) ... [2021-06-16 15:46:05,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:46:05" (1/1) ... [2021-06-16 15:46:05,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:46:05" (1/1) ... [2021-06-16 15:46:05,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:46:05" (1/1) ... [2021-06-16 15:46:05,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 15:46:05,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 15:46:05,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 15:46:05,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 15:46:05,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:46:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 15:46:06,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-16 15:46:06,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-16 15:46:06,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-16 15:46:06,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-16 15:46:06,003 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-16 15:46:06,003 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-16 15:46:06,003 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-16 15:46:06,003 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-16 15:46:06,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-16 15:46:06,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-16 15:46:06,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 15:46:06,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 15:46:06,005 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 15:46:06,286 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 15:46:06,287 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-16 15:46:06,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 03:46:06 BoogieIcfgContainer [2021-06-16 15:46:06,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 15:46:06,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 15:46:06,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 15:46:06,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 15:46:06,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.06 03:46:05" (1/3) ... [2021-06-16 15:46:06,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dadbe94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 03:46:06, skipping insertion in model container [2021-06-16 15:46:06,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:46:05" (2/3) ... [2021-06-16 15:46:06,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dadbe94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 03:46:06, skipping insertion in model container [2021-06-16 15:46:06,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 03:46:06" (3/3) ... [2021-06-16 15:46:06,294 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_tso.oepc.i [2021-06-16 15:46:06,301 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 15:46:06,301 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 15:46:06,302 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 15:46:06,302 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 15:46:06,341 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,341 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,341 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,341 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,342 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,342 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,342 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,342 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,343 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,343 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,343 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,343 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,345 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,345 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,345 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,345 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,345 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,345 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,345 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,345 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,346 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,346 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,346 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,346 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,349 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,350 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,350 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,350 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,355 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,356 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,356 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,356 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:46:06,367 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-16 15:46:06,387 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-16 15:46:06,415 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 15:46:06,415 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 15:46:06,415 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 15:46:06,415 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 15:46:06,415 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 15:46:06,416 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 15:46:06,416 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 15:46:06,416 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 15:46:06,675 INFO L276 IsEmpty]: Start isEmpty. Operand has 1246 states, 1072 states have (on average 1.8610074626865671) internal successors, (1995), 1245 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:46:06,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-16 15:46:06,697 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:46:06,698 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:46:06,698 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:46:06,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:46:06,702 INFO L82 PathProgramCache]: Analyzing trace with hash -593502858, now seen corresponding path program 1 times [2021-06-16 15:46:06,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:46:06,710 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028370020] [2021-06-16 15:46:06,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:46:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:46:07,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:07,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:46:07,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:07,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:46:07,074 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-06-16 15:46:07,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:46:07,103 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:46:07,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:46:07,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:07,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:46:07,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:07,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:46:07,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:07,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:46:07,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:46:07,181 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:46:07,181 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028370020] [2021-06-16 15:46:07,182 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028370020] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:46:07,182 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:46:07,182 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:46:07,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150955016] [2021-06-16 15:46:07,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:46:07,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:46:07,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:46:07,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:46:07,200 INFO L87 Difference]: Start difference. First operand has 1246 states, 1072 states have (on average 1.8610074626865671) internal successors, (1995), 1245 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:46:07,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:46:07,460 INFO L93 Difference]: Finished difference Result 1589 states and 2566 transitions. [2021-06-16 15:46:07,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 15:46:07,474 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-06-16 15:46:07,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:46:07,485 INFO L225 Difference]: With dead ends: 1589 [2021-06-16 15:46:07,486 INFO L226 Difference]: Without dead ends: 380 [2021-06-16 15:46:07,487 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 191.9ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-16 15:46:07,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2021-06-16 15:46:07,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2021-06-16 15:46:07,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 375 states have (on average 1.776) internal successors, (666), 379 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:46:07,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 666 transitions. [2021-06-16 15:46:07,593 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 666 transitions. Word has length 41 [2021-06-16 15:46:07,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:46:07,593 INFO L482 AbstractCegarLoop]: Abstraction has 380 states and 666 transitions. [2021-06-16 15:46:07,593 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:46:07,594 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 666 transitions. [2021-06-16 15:46:07,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-06-16 15:46:07,596 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:46:07,596 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:46:07,597 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 15:46:07,599 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:46:07,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:46:07,602 INFO L82 PathProgramCache]: Analyzing trace with hash -850483913, now seen corresponding path program 1 times [2021-06-16 15:46:07,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:46:07,607 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896279429] [2021-06-16 15:46:07,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:46:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:46:07,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:07,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:46:07,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:07,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:46:07,715 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-06-16 15:46:07,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:46:07,753 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:46:07,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:46:07,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:07,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:46:07,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:07,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:46:07,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:07,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:46:07,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:46:07,829 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:46:07,829 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896279429] [2021-06-16 15:46:07,829 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896279429] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:46:07,830 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:46:07,830 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:46:07,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464448855] [2021-06-16 15:46:07,832 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:46:07,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:46:07,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:46:07,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:46:07,833 INFO L87 Difference]: Start difference. First operand 380 states and 666 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:46:08,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:46:08,025 INFO L93 Difference]: Finished difference Result 420 states and 752 transitions. [2021-06-16 15:46:08,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 15:46:08,025 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-06-16 15:46:08,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:46:08,027 INFO L225 Difference]: With dead ends: 420 [2021-06-16 15:46:08,027 INFO L226 Difference]: Without dead ends: 320 [2021-06-16 15:46:08,028 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 209.4ms TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-06-16 15:46:08,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2021-06-16 15:46:08,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2021-06-16 15:46:08,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 315 states have (on average 1.7523809523809524) internal successors, (552), 319 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:46:08,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 552 transitions. [2021-06-16 15:46:08,043 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 552 transitions. Word has length 43 [2021-06-16 15:46:08,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:46:08,044 INFO L482 AbstractCegarLoop]: Abstraction has 320 states and 552 transitions. [2021-06-16 15:46:08,044 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:46:08,044 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 552 transitions. [2021-06-16 15:46:08,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-16 15:46:08,045 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:46:08,046 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:46:08,046 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 15:46:08,046 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:46:08,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:46:08,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1690991480, now seen corresponding path program 1 times [2021-06-16 15:46:08,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:46:08,047 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632463412] [2021-06-16 15:46:08,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:46:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:46:08,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:08,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:46:08,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:08,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:46:08,134 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-06-16 15:46:08,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:46:08,146 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:46:08,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:46:08,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:08,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:46:08,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:08,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:46:08,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:08,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:46:08,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:46:08,210 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:46:08,210 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632463412] [2021-06-16 15:46:08,211 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632463412] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:46:08,212 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:46:08,212 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:46:08,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402007431] [2021-06-16 15:46:08,213 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:46:08,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:46:08,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:46:08,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:46:08,215 INFO L87 Difference]: Start difference. First operand 320 states and 552 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:46:08,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:46:08,368 INFO L93 Difference]: Finished difference Result 458 states and 816 transitions. [2021-06-16 15:46:08,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-16 15:46:08,368 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-06-16 15:46:08,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:46:08,370 INFO L225 Difference]: With dead ends: 458 [2021-06-16 15:46:08,370 INFO L226 Difference]: Without dead ends: 294 [2021-06-16 15:46:08,371 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 167.8ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-16 15:46:08,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-06-16 15:46:08,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2021-06-16 15:46:08,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 289 states have (on average 1.7370242214532872) internal successors, (502), 293 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:46:08,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 502 transitions. [2021-06-16 15:46:08,389 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 502 transitions. Word has length 45 [2021-06-16 15:46:08,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:46:08,390 INFO L482 AbstractCegarLoop]: Abstraction has 294 states and 502 transitions. [2021-06-16 15:46:08,390 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:46:08,390 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 502 transitions. [2021-06-16 15:46:08,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 15:46:08,394 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:46:08,394 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:46:08,394 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-16 15:46:08,394 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:46:08,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:46:08,396 INFO L82 PathProgramCache]: Analyzing trace with hash 659226972, now seen corresponding path program 1 times [2021-06-16 15:46:08,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:46:08,396 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050125615] [2021-06-16 15:46:08,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:46:08,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:46:08,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:08,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:46:08,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:08,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:46:08,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:08,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:46:08,485 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-06-16 15:46:08,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:46:08,502 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:46:08,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:46:08,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:08,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:46:08,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:08,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:46:08,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:08,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:46:08,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:46:08,582 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:46:08,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050125615] [2021-06-16 15:46:08,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050125615] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:46:08,583 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:46:08,583 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-16 15:46:08,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403573405] [2021-06-16 15:46:08,584 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-16 15:46:08,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:46:08,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-16 15:46:08,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-16 15:46:08,585 INFO L87 Difference]: Start difference. First operand 294 states and 502 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:46:08,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:46:08,749 INFO L93 Difference]: Finished difference Result 368 states and 632 transitions. [2021-06-16 15:46:08,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-16 15:46:08,749 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-16 15:46:08,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:46:08,752 INFO L225 Difference]: With dead ends: 368 [2021-06-16 15:46:08,752 INFO L226 Difference]: Without dead ends: 242 [2021-06-16 15:46:08,753 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 197.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-16 15:46:08,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-06-16 15:46:08,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-06-16 15:46:08,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 238 states have (on average 1.76890756302521) internal successors, (421), 241 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:46:08,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 421 transitions. [2021-06-16 15:46:08,761 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 421 transitions. Word has length 46 [2021-06-16 15:46:08,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:46:08,761 INFO L482 AbstractCegarLoop]: Abstraction has 242 states and 421 transitions. [2021-06-16 15:46:08,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:46:08,761 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 421 transitions. [2021-06-16 15:46:08,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 15:46:08,762 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:46:08,762 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:46:08,762 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-16 15:46:08,762 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:46:08,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:46:08,764 INFO L82 PathProgramCache]: Analyzing trace with hash -354582396, now seen corresponding path program 1 times [2021-06-16 15:46:08,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:46:08,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589898267] [2021-06-16 15:46:08,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:46:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:46:08,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:08,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:46:08,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:08,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:46:08,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:08,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:46:08,848 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:46:08,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:46:08,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:08,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:46:08,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:08,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:46:08,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:46:08,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:46:08,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:46:08,897 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:46:08,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589898267] [2021-06-16 15:46:08,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589898267] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:46:08,898 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:46:08,898 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:46:08,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15782123] [2021-06-16 15:46:08,899 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:46:08,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:46:08,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:46:08,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:46:08,900 INFO L87 Difference]: Start difference. First operand 242 states and 421 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:46:09,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:46:09,043 INFO L93 Difference]: Finished difference Result 210 states and 361 transitions. [2021-06-16 15:46:09,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 15:46:09,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-06-16 15:46:09,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:46:09,044 INFO L225 Difference]: With dead ends: 210 [2021-06-16 15:46:09,044 INFO L226 Difference]: Without dead ends: 0 [2021-06-16 15:46:09,045 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 160.5ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-16 15:46:09,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-16 15:46:09,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-16 15:46:09,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:46:09,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-16 15:46:09,045 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2021-06-16 15:46:09,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:46:09,045 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-16 15:46:09,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:46:09,046 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-16 15:46:09,046 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-16 15:46:09,046 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-16 15:46:09,048 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-16 15:46:09,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.06 03:46:09 BasicIcfg [2021-06-16 15:46:09,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-16 15:46:09,051 INFO L168 Benchmark]: Toolchain (without parser) took 3655.51 ms. Allocated memory was 177.2 MB in the beginning and 238.0 MB in the end (delta: 60.8 MB). Free memory was 138.9 MB in the beginning and 153.3 MB in the end (delta: -14.5 MB). Peak memory consumption was 47.8 MB. Max. memory is 8.0 GB. [2021-06-16 15:46:09,052 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 177.2 MB. Free memory is still 157.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 15:46:09,052 INFO L168 Benchmark]: CACSL2BoogieTranslator took 476.60 ms. Allocated memory is still 177.2 MB. Free memory was 138.6 MB in the beginning and 140.5 MB in the end (delta: -1.9 MB). Peak memory consumption was 15.6 MB. Max. memory is 8.0 GB. [2021-06-16 15:46:09,052 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.69 ms. Allocated memory is still 177.2 MB. Free memory was 140.5 MB in the beginning and 138.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-16 15:46:09,053 INFO L168 Benchmark]: Boogie Preprocessor took 20.05 ms. Allocated memory is still 177.2 MB. Free memory was 138.4 MB in the beginning and 136.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-16 15:46:09,053 INFO L168 Benchmark]: RCFGBuilder took 354.62 ms. Allocated memory is still 177.2 MB. Free memory was 136.9 MB in the beginning and 158.8 MB in the end (delta: -21.8 MB). Peak memory consumption was 22.5 MB. Max. memory is 8.0 GB. [2021-06-16 15:46:09,054 INFO L168 Benchmark]: TraceAbstraction took 2760.23 ms. Allocated memory was 177.2 MB in the beginning and 238.0 MB in the end (delta: 60.8 MB). Free memory was 158.3 MB in the beginning and 153.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 66.2 MB. Max. memory is 8.0 GB. [2021-06-16 15:46:09,055 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 177.2 MB. Free memory is still 157.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 476.60 ms. Allocated memory is still 177.2 MB. Free memory was 138.6 MB in the beginning and 140.5 MB in the end (delta: -1.9 MB). Peak memory consumption was 15.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 35.69 ms. Allocated memory is still 177.2 MB. Free memory was 140.5 MB in the beginning and 138.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 20.05 ms. Allocated memory is still 177.2 MB. Free memory was 138.4 MB in the beginning and 136.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 354.62 ms. Allocated memory is still 177.2 MB. Free memory was 136.9 MB in the beginning and 158.8 MB in the end (delta: -21.8 MB). Peak memory consumption was 22.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2760.23 ms. Allocated memory was 177.2 MB in the beginning and 238.0 MB in the end (delta: 60.8 MB). Free memory was 158.3 MB in the beginning and 153.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 66.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2563, positive: 2431, positive conditional: 2431, positive unconditional: 0, negative: 132, negative conditional: 132, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2501, positive: 2431, positive conditional: 0, positive unconditional: 2431, negative: 70, negative conditional: 0, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 482, positive: 474, positive conditional: 0, positive unconditional: 474, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 482, positive: 473, positive conditional: 0, positive unconditional: 473, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 49, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2501, positive: 1957, positive conditional: 0, positive unconditional: 1957, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 482, unknown conditional: 0, unknown unconditional: 482] , Statistics on independence cache: Total cache size (in pairs): 482, Positive cache size: 474, Positive conditional cache size: 0, Positive unconditional cache size: 474, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Independence queries for same thread: 62 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 82 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2633.8ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 35.9ms, AutomataDifference: 968.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 252.0ms, PartialOrderReductionTime: 237.9ms, HoareTripleCheckerStatistics: 360 SDtfs, 538 SDslu, 1318 SDs, 0 SdLazy, 148 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 175.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 927.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1246occurred in iteration=0, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 125.6ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 23.2ms SsaConstructionTime, 189.5ms SatisfiabilityAnalysisTime, 866.9ms InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 864 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...