/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/safe033_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 15:50:36,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 15:50:36,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 15:50:36,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-16 15:50:36,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-16 15:50:36,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-16 15:50:36,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-16 15:50:36,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-16 15:50:36,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-16 15:50:36,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-16 15:50:36,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-16 15:50:36,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-16 15:50:36,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-16 15:50:36,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-16 15:50:36,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-16 15:50:36,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-16 15:50:36,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-16 15:50:36,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-16 15:50:36,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-16 15:50:36,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-16 15:50:36,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-16 15:50:36,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-16 15:50:36,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-16 15:50:36,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-16 15:50:36,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-16 15:50:36,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-16 15:50:36,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-16 15:50:36,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-16 15:50:36,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-16 15:50:36,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-16 15:50:36,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-16 15:50:36,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-16 15:50:36,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-16 15:50:36,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-16 15:50:36,969 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-16 15:50:36,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-16 15:50:36,970 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-16 15:50:36,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-16 15:50:36,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-16 15:50:36,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-16 15:50:36,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-16 15:50:36,973 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 15:50:37,007 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 15:50:37,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 15:50:37,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 15:50:37,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 15:50:37,011 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 15:50:37,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 15:50:37,012 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 15:50:37,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 15:50:37,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 15:50:37,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 15:50:37,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 15:50:37,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 15:50:37,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 15:50:37,013 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 15:50:37,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 15:50:37,014 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 15:50:37,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 15:50:37,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 15:50:37,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 15:50:37,014 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 15:50:37,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 15:50:37,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 15:50:37,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 15:50:37,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 15:50:37,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 15:50:37,015 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 15:50:37,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 15:50:37,015 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 15:50:37,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 15:50:37,016 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-16 15:50:37,016 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 15:50:37,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 15:50:37,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 15:50:37,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 15:50:37,340 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-16 15:50:37,345 INFO L275 PluginConnector]: CDTParser initialized [2021-06-16 15:50:37,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2021-06-16 15:50:37,408 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa642c991/2bde243bfe57421281365495b0ee522d/FLAGbc4f14990 [2021-06-16 15:50:37,962 INFO L306 CDTParser]: Found 1 translation units. [2021-06-16 15:50:37,963 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2021-06-16 15:50:37,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa642c991/2bde243bfe57421281365495b0ee522d/FLAGbc4f14990 [2021-06-16 15:50:38,267 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa642c991/2bde243bfe57421281365495b0ee522d [2021-06-16 15:50:38,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 15:50:38,272 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-16 15:50:38,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-16 15:50:38,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-16 15:50:38,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-16 15:50:38,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 03:50:38" (1/1) ... [2021-06-16 15:50:38,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27554a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:50:38, skipping insertion in model container [2021-06-16 15:50:38,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 03:50:38" (1/1) ... [2021-06-16 15:50:38,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-16 15:50:38,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-16 15:50:38,497 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/safe033_tso.opt.i[949,962] [2021-06-16 15:50:38,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 15:50:38,680 INFO L203 MainTranslator]: Completed pre-run [2021-06-16 15:50:38,692 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/safe033_tso.opt.i[949,962] [2021-06-16 15:50:38,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 15:50:38,809 INFO L208 MainTranslator]: Completed translation [2021-06-16 15:50:38,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:50:38 WrapperNode [2021-06-16 15:50:38,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-16 15:50:38,811 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 15:50:38,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 15:50:38,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 15:50:38,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:50:38" (1/1) ... [2021-06-16 15:50:38,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:50:38" (1/1) ... [2021-06-16 15:50:38,869 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 15:50:38,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 15:50:38,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 15:50:38,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 15:50:38,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:50:38" (1/1) ... [2021-06-16 15:50:38,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:50:38" (1/1) ... [2021-06-16 15:50:38,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:50:38" (1/1) ... [2021-06-16 15:50:38,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:50:38" (1/1) ... [2021-06-16 15:50:38,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:50:38" (1/1) ... [2021-06-16 15:50:38,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:50:38" (1/1) ... [2021-06-16 15:50:38,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:50:38" (1/1) ... [2021-06-16 15:50:38,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 15:50:38,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 15:50:38,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 15:50:38,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 15:50:38,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:50:38" (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 15:50:38,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-16 15:50:38,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-16 15:50:38,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-16 15:50:38,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-16 15:50:38,982 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-16 15:50:38,983 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-16 15:50:38,983 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-16 15:50:38,983 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-16 15:50:38,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-16 15:50:38,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-16 15:50:38,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 15:50:38,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 15:50:38,985 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 15:50:39,451 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 15:50:39,452 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-16 15:50:39,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 03:50:39 BoogieIcfgContainer [2021-06-16 15:50:39,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 15:50:39,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 15:50:39,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 15:50:39,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 15:50:39,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.06 03:50:38" (1/3) ... [2021-06-16 15:50:39,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9b69b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 03:50:39, skipping insertion in model container [2021-06-16 15:50:39,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:50:38" (2/3) ... [2021-06-16 15:50:39,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9b69b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 03:50:39, skipping insertion in model container [2021-06-16 15:50:39,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 03:50:39" (3/3) ... [2021-06-16 15:50:39,461 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.opt.i [2021-06-16 15:50:39,466 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 15:50:39,467 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 15:50:39,467 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 15:50:39,467 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 15:50:39,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,499 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,499 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,500 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,500 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,500 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,500 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,502 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,502 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,502 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,503 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,503 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,503 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,503 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,504 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,507 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,507 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,507 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,507 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,512 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,512 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,512 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,512 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:50:39,515 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-16 15:50:39,534 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-16 15:50:39,563 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 15:50:39,564 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 15:50:39,564 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 15:50:39,564 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 15:50:39,564 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 15:50:39,564 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 15:50:39,564 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 15:50:39,564 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 15:50:39,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 1245 states, 1071 states have (on average 1.8478057889822597) internal successors, (1979), 1244 states have internal predecessors, (1979), 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 15:50:39,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-06-16 15:50:39,797 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:50:39,797 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] [2021-06-16 15:50:39,798 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:50:39,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:50:39,802 INFO L82 PathProgramCache]: Analyzing trace with hash 311474389, now seen corresponding path program 1 times [2021-06-16 15:50:39,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:50:39,809 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262353550] [2021-06-16 15:50:39,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:50:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:50:40,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:40,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:50:40,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:40,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:50:40,145 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:50:40,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:50:40,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:40,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:50:40,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:40,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:50:40,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:40,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:50:40,226 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 15:50:40,226 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:50:40,226 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262353550] [2021-06-16 15:50:40,227 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262353550] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:50:40,227 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:50:40,227 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-16 15:50:40,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121430944] [2021-06-16 15:50:40,230 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-16 15:50:40,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:50:40,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-16 15:50:40,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-16 15:50:40,248 INFO L87 Difference]: Start difference. First operand has 1245 states, 1071 states have (on average 1.8478057889822597) internal successors, (1979), 1244 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 15:50:40,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:50:40,461 INFO L93 Difference]: Finished difference Result 1700 states and 2717 transitions. [2021-06-16 15:50:40,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 15:50:40,465 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 40 [2021-06-16 15:50:40,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:50:40,487 INFO L225 Difference]: With dead ends: 1700 [2021-06-16 15:50:40,488 INFO L226 Difference]: Without dead ends: 445 [2021-06-16 15:50:40,489 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 168.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:50:40,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2021-06-16 15:50:40,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2021-06-16 15:50:40,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 438 states have (on average 1.7465753424657535) internal successors, (765), 444 states have internal predecessors, (765), 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 15:50:40,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 765 transitions. [2021-06-16 15:50:40,556 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 765 transitions. Word has length 40 [2021-06-16 15:50:40,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:50:40,556 INFO L482 AbstractCegarLoop]: Abstraction has 445 states and 765 transitions. [2021-06-16 15:50:40,556 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 15:50:40,556 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 765 transitions. [2021-06-16 15:50:40,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-06-16 15:50:40,558 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:50:40,559 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] [2021-06-16 15:50:40,559 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 15:50:40,559 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:50:40,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:50:40,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1888992662, now seen corresponding path program 1 times [2021-06-16 15:50:40,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:50:40,560 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16633300] [2021-06-16 15:50:40,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:50:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:50:40,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:40,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:50:40,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:40,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:50:40,639 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:50:40,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:50:40,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:40,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:50:40,697 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:50:40,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:50:40,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:40,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:50:40,710 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 15:50:40,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:50:40,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16633300] [2021-06-16 15:50:40,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16633300] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:50:40,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:50:40,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-16 15:50:40,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798188777] [2021-06-16 15:50:40,712 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-16 15:50:40,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:50:40,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-16 15:50:40,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-16 15:50:40,714 INFO L87 Difference]: Start difference. First operand 445 states and 765 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 15:50:40,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:50:40,830 INFO L93 Difference]: Finished difference Result 445 states and 715 transitions. [2021-06-16 15:50:40,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 15:50:40,831 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2021-06-16 15:50:40,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:50:40,833 INFO L225 Difference]: With dead ends: 445 [2021-06-16 15:50:40,833 INFO L226 Difference]: Without dead ends: 305 [2021-06-16 15:50:40,834 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 128.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:50:40,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2021-06-16 15:50:40,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2021-06-16 15:50:40,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 298 states have (on average 1.6476510067114094) internal successors, (491), 304 states have internal predecessors, (491), 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 15:50:40,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 491 transitions. [2021-06-16 15:50:40,860 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 491 transitions. Word has length 42 [2021-06-16 15:50:40,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:50:40,860 INFO L482 AbstractCegarLoop]: Abstraction has 305 states and 491 transitions. [2021-06-16 15:50:40,860 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 15:50:40,860 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 491 transitions. [2021-06-16 15:50:40,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-06-16 15:50:40,861 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:50:40,861 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] [2021-06-16 15:50:40,862 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 15:50:40,862 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:50:40,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:50:40,862 INFO L82 PathProgramCache]: Analyzing trace with hash 297499667, now seen corresponding path program 1 times [2021-06-16 15:50:40,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:50:40,863 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186003741] [2021-06-16 15:50:40,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:50:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:50:40,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:40,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:50:40,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:40,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:50:40,931 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:50:40,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:50:40,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:40,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:50:40,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:40,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:50:40,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:40,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:50:40,970 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 15:50:40,971 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:50:40,971 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186003741] [2021-06-16 15:50:40,971 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186003741] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:50:40,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:50:40,971 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-16 15:50:40,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092253637] [2021-06-16 15:50:40,972 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-16 15:50:40,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:50:40,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-16 15:50:40,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-16 15:50:40,973 INFO L87 Difference]: Start difference. First operand 305 states and 491 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 15:50:41,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:50:41,075 INFO L93 Difference]: Finished difference Result 441 states and 737 transitions. [2021-06-16 15:50:41,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 15:50:41,076 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 44 [2021-06-16 15:50:41,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:50:41,077 INFO L225 Difference]: With dead ends: 441 [2021-06-16 15:50:41,080 INFO L226 Difference]: Without dead ends: 289 [2021-06-16 15:50:41,081 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 102.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:50:41,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-06-16 15:50:41,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 247. [2021-06-16 15:50:41,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.6322314049586777) internal successors, (395), 246 states have internal predecessors, (395), 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 15:50:41,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 395 transitions. [2021-06-16 15:50:41,087 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 395 transitions. Word has length 44 [2021-06-16 15:50:41,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:50:41,087 INFO L482 AbstractCegarLoop]: Abstraction has 247 states and 395 transitions. [2021-06-16 15:50:41,087 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 15:50:41,087 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 395 transitions. [2021-06-16 15:50:41,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-06-16 15:50:41,088 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:50:41,089 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] [2021-06-16 15:50:41,089 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-16 15:50:41,089 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:50:41,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:50:41,089 INFO L82 PathProgramCache]: Analyzing trace with hash -540334505, now seen corresponding path program 1 times [2021-06-16 15:50:41,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:50:41,090 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84493349] [2021-06-16 15:50:41,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:50:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:50:41,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:41,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:50:41,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:41,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:50:41,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:41,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:50:41,139 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:50:41,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:50:41,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:41,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:50:41,167 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:50:41,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:50:41,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:41,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:50:41,185 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 15:50:41,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:50:41,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84493349] [2021-06-16 15:50:41,186 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84493349] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:50:41,186 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:50:41,188 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:50:41,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506530465] [2021-06-16 15:50:41,190 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:50:41,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:50:41,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:50:41,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:50:41,196 INFO L87 Difference]: Start difference. First operand 247 states and 395 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 15:50:41,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:50:41,343 INFO L93 Difference]: Finished difference Result 161 states and 217 transitions. [2021-06-16 15:50:41,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 15:50:41,344 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 44 [2021-06-16 15:50:41,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:50:41,345 INFO L225 Difference]: With dead ends: 161 [2021-06-16 15:50:41,345 INFO L226 Difference]: Without dead ends: 81 [2021-06-16 15:50:41,346 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 135.0ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-16 15:50:41,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-06-16 15:50:41,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2021-06-16 15:50:41,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 78 states have (on average 1.3076923076923077) internal successors, (102), 80 states have internal predecessors, (102), 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 15:50:41,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 102 transitions. [2021-06-16 15:50:41,348 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 102 transitions. Word has length 44 [2021-06-16 15:50:41,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:50:41,349 INFO L482 AbstractCegarLoop]: Abstraction has 81 states and 102 transitions. [2021-06-16 15:50:41,349 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 15:50:41,349 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2021-06-16 15:50:41,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-16 15:50:41,350 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:50:41,350 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, 1, 1] [2021-06-16 15:50:41,350 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-16 15:50:41,351 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:50:41,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:50:41,351 INFO L82 PathProgramCache]: Analyzing trace with hash -864935541, now seen corresponding path program 1 times [2021-06-16 15:50:41,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:50:41,352 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655945796] [2021-06-16 15:50:41,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:50:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:50:41,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:41,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:50:41,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:41,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:50:41,436 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-06-16 15:50:41,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:50:41,445 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:50:41,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:50:41,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:41,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:50:41,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:41,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:50:41,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:50:41,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:50:41,489 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 15:50:41,490 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:50:41,490 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655945796] [2021-06-16 15:50:41,490 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655945796] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:50:41,490 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:50:41,490 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:50:41,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435701664] [2021-06-16 15:50:41,491 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:50:41,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:50:41,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:50:41,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:50:41,492 INFO L87 Difference]: Start difference. First operand 81 states and 102 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:50:41,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:50:41,579 INFO L93 Difference]: Finished difference Result 69 states and 86 transitions. [2021-06-16 15:50:41,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 15:50:41,579 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-06-16 15:50:41,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:50:41,580 INFO L225 Difference]: With dead ends: 69 [2021-06-16 15:50:41,580 INFO L226 Difference]: Without dead ends: 0 [2021-06-16 15:50:41,580 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 114.1ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:50:41,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-16 15:50:41,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-16 15:50:41,581 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 15:50:41,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-16 15:50:41,581 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2021-06-16 15:50:41,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:50:41,581 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-16 15:50:41,582 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:50:41,582 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-16 15:50:41,582 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-16 15:50:41,582 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-16 15:50:41,584 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-16 15:50:41,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.06 03:50:41 BasicIcfg [2021-06-16 15:50:41,586 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-16 15:50:41,587 INFO L168 Benchmark]: Toolchain (without parser) took 3314.36 ms. Allocated memory was 207.6 MB in the beginning and 267.4 MB in the end (delta: 59.8 MB). Free memory was 170.0 MB in the beginning and 217.1 MB in the end (delta: -47.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 8.0 GB. [2021-06-16 15:50:41,587 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 207.6 MB. Free memory is still 188.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 15:50:41,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 537.19 ms. Allocated memory is still 207.6 MB. Free memory was 169.8 MB in the beginning and 169.0 MB in the end (delta: 743.8 kB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-06-16 15:50:41,588 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.04 ms. Allocated memory is still 207.6 MB. Free memory was 168.5 MB in the beginning and 166.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-16 15:50:41,588 INFO L168 Benchmark]: Boogie Preprocessor took 33.87 ms. Allocated memory is still 207.6 MB. Free memory was 166.9 MB in the beginning and 165.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-16 15:50:41,589 INFO L168 Benchmark]: RCFGBuilder took 549.00 ms. Allocated memory is still 207.6 MB. Free memory was 165.4 MB in the beginning and 144.4 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-06-16 15:50:41,589 INFO L168 Benchmark]: TraceAbstraction took 2130.41 ms. Allocated memory was 207.6 MB in the beginning and 267.4 MB in the end (delta: 59.8 MB). Free memory was 143.9 MB in the beginning and 217.1 MB in the end (delta: -73.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 15:50:41,591 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 207.6 MB. Free memory is still 188.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 537.19 ms. Allocated memory is still 207.6 MB. Free memory was 169.8 MB in the beginning and 169.0 MB in the end (delta: 743.8 kB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 58.04 ms. Allocated memory is still 207.6 MB. Free memory was 168.5 MB in the beginning and 166.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.87 ms. Allocated memory is still 207.6 MB. Free memory was 166.9 MB in the beginning and 165.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 549.00 ms. Allocated memory is still 207.6 MB. Free memory was 165.4 MB in the beginning and 144.4 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2130.41 ms. Allocated memory was 207.6 MB in the beginning and 267.4 MB in the end (delta: 59.8 MB). Free memory was 143.9 MB in the beginning and 217.1 MB in the end (delta: -73.2 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2547, positive: 2412, positive conditional: 2412, positive unconditional: 0, negative: 135, negative conditional: 135, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2485, positive: 2412, positive conditional: 0, positive unconditional: 2412, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 467, positive: 457, positive conditional: 0, positive unconditional: 457, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 467, positive: 456, positive conditional: 0, positive unconditional: 456, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 23, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2485, positive: 1955, positive conditional: 0, positive unconditional: 1955, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 467, unknown conditional: 0, unknown unconditional: 467] , Statistics on independence cache: Total cache size (in pairs): 467, Positive cache size: 457, Positive conditional cache size: 0, Positive unconditional cache size: 457, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, 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, 81 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2021.4ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 20.9ms, AutomataDifference: 733.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 215.6ms, PartialOrderReductionTime: 203.0ms, HoareTripleCheckerStatistics: 338 SDtfs, 375 SDslu, 1046 SDs, 0 SdLazy, 148 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 141.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 648.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1245occurred in iteration=0, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 73.3ms AutomataMinimizationTime, 5 MinimizatonAttempts, 42 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.9ms SsaConstructionTime, 177.3ms SatisfiabilityAnalysisTime, 612.7ms InterpolantComputationTime, 218 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 213 ConstructedInterpolants, 0 QuantifiedInterpolants, 597 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...