/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/thin000_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 15:51:05,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 15:51:05,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 15:51:05,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-16 15:51:05,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-16 15:51:05,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-16 15:51:05,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-16 15:51:05,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-16 15:51:05,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-16 15:51:05,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-16 15:51:05,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-16 15:51:05,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-16 15:51:05,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-16 15:51:05,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-16 15:51:05,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-16 15:51:05,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-16 15:51:05,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-16 15:51:05,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-16 15:51:05,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-16 15:51:05,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-16 15:51:05,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-16 15:51:05,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-16 15:51:05,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-16 15:51:05,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-16 15:51:05,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-16 15:51:05,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-16 15:51:05,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-16 15:51:05,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-16 15:51:05,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-16 15:51:05,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-16 15:51:05,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-16 15:51:05,403 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-16 15:51:05,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-16 15:51:05,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-16 15:51:05,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-16 15:51:05,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-16 15:51:05,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-16 15:51:05,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-16 15:51:05,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-16 15:51:05,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-16 15:51:05,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-16 15:51:05,412 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 15:51:05,427 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 15:51:05,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 15:51:05,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 15:51:05,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 15:51:05,428 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 15:51:05,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 15:51:05,429 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 15:51:05,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 15:51:05,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 15:51:05,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 15:51:05,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 15:51:05,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 15:51:05,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 15:51:05,430 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 15:51:05,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 15:51:05,430 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 15:51:05,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 15:51:05,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 15:51:05,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 15:51:05,430 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 15:51:05,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 15:51:05,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 15:51:05,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 15:51:05,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 15:51:05,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 15:51:05,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 15:51:05,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 15:51:05,432 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 15:51:05,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 15:51:05,432 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-16 15:51:05,432 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 15:51:05,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 15:51:05,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 15:51:05,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 15:51:05,718 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-16 15:51:05,719 INFO L275 PluginConnector]: CDTParser initialized [2021-06-16 15:51:05,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_pso.oepc.i [2021-06-16 15:51:05,760 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d95ccaa23/d0cf20b3e89948009f7e7625955a3ba9/FLAG2fbe6d826 [2021-06-16 15:51:06,177 INFO L306 CDTParser]: Found 1 translation units. [2021-06-16 15:51:06,177 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_pso.oepc.i [2021-06-16 15:51:06,191 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d95ccaa23/d0cf20b3e89948009f7e7625955a3ba9/FLAG2fbe6d826 [2021-06-16 15:51:06,520 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d95ccaa23/d0cf20b3e89948009f7e7625955a3ba9 [2021-06-16 15:51:06,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 15:51:06,525 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-16 15:51:06,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-16 15:51:06,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-16 15:51:06,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-16 15:51:06,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 03:51:06" (1/1) ... [2021-06-16 15:51:06,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41a4ae23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:51:06, skipping insertion in model container [2021-06-16 15:51:06,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 03:51:06" (1/1) ... [2021-06-16 15:51:06,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-16 15:51:06,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-16 15:51:06,686 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/thin000_pso.oepc.i[950,963] [2021-06-16 15:51:06,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 15:51:06,867 INFO L203 MainTranslator]: Completed pre-run [2021-06-16 15:51:06,877 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/thin000_pso.oepc.i[950,963] [2021-06-16 15:51:06,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 15:51:06,960 INFO L208 MainTranslator]: Completed translation [2021-06-16 15:51:06,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:51:06 WrapperNode [2021-06-16 15:51:06,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-16 15:51:06,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 15:51:06,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 15:51:06,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 15:51:06,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:51:06" (1/1) ... [2021-06-16 15:51:06,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:51:06" (1/1) ... [2021-06-16 15:51:07,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 15:51:07,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 15:51:07,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 15:51:07,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 15:51:07,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:51:06" (1/1) ... [2021-06-16 15:51:07,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:51:06" (1/1) ... [2021-06-16 15:51:07,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:51:06" (1/1) ... [2021-06-16 15:51:07,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:51:06" (1/1) ... [2021-06-16 15:51:07,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:51:06" (1/1) ... [2021-06-16 15:51:07,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:51:06" (1/1) ... [2021-06-16 15:51:07,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:51:06" (1/1) ... [2021-06-16 15:51:07,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 15:51:07,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 15:51:07,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 15:51:07,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 15:51:07,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:51:06" (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 15:51:07,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-16 15:51:07,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-16 15:51:07,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-16 15:51:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-16 15:51:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-16 15:51:07,098 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-16 15:51:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-16 15:51:07,099 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-16 15:51:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-16 15:51:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-16 15:51:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 15:51:07,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 15:51:07,100 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 15:51:07,429 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 15:51:07,430 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-16 15:51:07,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 03:51:07 BoogieIcfgContainer [2021-06-16 15:51:07,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 15:51:07,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 15:51:07,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 15:51:07,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 15:51:07,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.06 03:51:06" (1/3) ... [2021-06-16 15:51:07,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7497763f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 03:51:07, skipping insertion in model container [2021-06-16 15:51:07,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:51:06" (2/3) ... [2021-06-16 15:51:07,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7497763f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 03:51:07, skipping insertion in model container [2021-06-16 15:51:07,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 03:51:07" (3/3) ... [2021-06-16 15:51:07,438 INFO L111 eAbstractionObserver]: Analyzing ICFG thin000_pso.oepc.i [2021-06-16 15:51:07,443 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 15:51:07,443 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 15:51:07,443 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 15:51:07,443 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 15:51:07,468 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,469 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,469 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,469 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,469 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,469 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,469 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,469 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,471 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,471 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,472 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,472 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,475 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,475 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,476 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,476 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,480 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,480 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:51:07,483 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-16 15:51:07,498 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-16 15:51:07,523 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 15:51:07,523 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 15:51:07,523 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 15:51:07,523 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 15:51:07,523 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 15:51:07,524 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 15:51:07,524 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 15:51:07,524 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 15:51:07,716 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 15:51:07,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-16 15:51:07,728 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:51:07,729 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 15:51:07,729 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:51:07,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:51:07,733 INFO L82 PathProgramCache]: Analyzing trace with hash -593502858, now seen corresponding path program 1 times [2021-06-16 15:51:07,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:51:07,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946040271] [2021-06-16 15:51:07,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:51:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:51:07,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:07,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:51:07,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:07,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:51:07,996 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-06-16 15:51:07,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:51:08,010 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:51:08,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:51:08,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:08,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:51:08,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:08,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:51:08,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:08,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:51:08,074 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 15:51:08,074 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:51:08,074 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946040271] [2021-06-16 15:51:08,075 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946040271] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:51:08,075 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:51:08,075 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:51:08,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998813017] [2021-06-16 15:51:08,077 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:51:08,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:51:08,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:51:08,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:51:08,100 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 15:51:08,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:51:08,339 INFO L93 Difference]: Finished difference Result 1589 states and 2566 transitions. [2021-06-16 15:51:08,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 15:51:08,340 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 15:51:08,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:51:08,351 INFO L225 Difference]: With dead ends: 1589 [2021-06-16 15:51:08,352 INFO L226 Difference]: Without dead ends: 380 [2021-06-16 15:51:08,353 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 182.3ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-16 15:51:08,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2021-06-16 15:51:08,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2021-06-16 15:51:08,413 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 15:51:08,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 666 transitions. [2021-06-16 15:51:08,415 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 666 transitions. Word has length 41 [2021-06-16 15:51:08,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:51:08,416 INFO L482 AbstractCegarLoop]: Abstraction has 380 states and 666 transitions. [2021-06-16 15:51:08,416 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 15:51:08,416 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 666 transitions. [2021-06-16 15:51:08,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-06-16 15:51:08,419 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:51:08,419 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 15:51:08,420 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 15:51:08,422 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:51:08,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:51:08,424 INFO L82 PathProgramCache]: Analyzing trace with hash -850483913, now seen corresponding path program 1 times [2021-06-16 15:51:08,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:51:08,429 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996204372] [2021-06-16 15:51:08,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:51:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:51:08,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:08,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:51:08,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:08,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:51:08,550 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-06-16 15:51:08,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:51:08,558 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:51:08,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:51:08,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:08,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:51:08,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:08,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:51:08,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:08,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:51:08,597 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 15:51:08,598 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:51:08,598 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996204372] [2021-06-16 15:51:08,598 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996204372] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:51:08,598 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:51:08,598 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:51:08,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624843303] [2021-06-16 15:51:08,599 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:51:08,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:51:08,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:51:08,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:51:08,601 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 15:51:08,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:51:08,801 INFO L93 Difference]: Finished difference Result 420 states and 752 transitions. [2021-06-16 15:51:08,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 15:51:08,802 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 15:51:08,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:51:08,803 INFO L225 Difference]: With dead ends: 420 [2021-06-16 15:51:08,803 INFO L226 Difference]: Without dead ends: 320 [2021-06-16 15:51:08,804 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 204.7ms TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-06-16 15:51:08,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2021-06-16 15:51:08,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2021-06-16 15:51:08,809 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 15:51:08,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 552 transitions. [2021-06-16 15:51:08,810 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 552 transitions. Word has length 43 [2021-06-16 15:51:08,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:51:08,810 INFO L482 AbstractCegarLoop]: Abstraction has 320 states and 552 transitions. [2021-06-16 15:51:08,811 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 15:51:08,811 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 552 transitions. [2021-06-16 15:51:08,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-16 15:51:08,811 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:51:08,812 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 15:51:08,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 15:51:08,812 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:51:08,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:51:08,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1690991480, now seen corresponding path program 1 times [2021-06-16 15:51:08,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:51:08,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941995423] [2021-06-16 15:51:08,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:51:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:51:08,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:08,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:51:08,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:08,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:51:08,870 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-06-16 15:51:08,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:51:08,879 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:51:08,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:51:08,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:08,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:51:08,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:08,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:51:08,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:08,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:51:08,929 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 15:51:08,929 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:51:08,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941995423] [2021-06-16 15:51:08,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941995423] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:51:08,930 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:51:08,930 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:51:08,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118638023] [2021-06-16 15:51:08,931 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:51:08,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:51:08,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:51:08,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:51:08,932 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 15:51:09,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:51:09,070 INFO L93 Difference]: Finished difference Result 458 states and 816 transitions. [2021-06-16 15:51:09,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-16 15:51:09,070 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 15:51:09,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:51:09,072 INFO L225 Difference]: With dead ends: 458 [2021-06-16 15:51:09,072 INFO L226 Difference]: Without dead ends: 294 [2021-06-16 15:51:09,072 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 146.7ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-16 15:51:09,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-06-16 15:51:09,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2021-06-16 15:51:09,078 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 15:51:09,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 502 transitions. [2021-06-16 15:51:09,079 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 502 transitions. Word has length 45 [2021-06-16 15:51:09,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:51:09,079 INFO L482 AbstractCegarLoop]: Abstraction has 294 states and 502 transitions. [2021-06-16 15:51:09,079 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 15:51:09,080 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 502 transitions. [2021-06-16 15:51:09,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 15:51:09,081 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:51:09,081 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 15:51:09,081 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-16 15:51:09,081 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:51:09,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:51:09,082 INFO L82 PathProgramCache]: Analyzing trace with hash 659226972, now seen corresponding path program 1 times [2021-06-16 15:51:09,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:51:09,083 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661801360] [2021-06-16 15:51:09,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:51:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:51:09,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:09,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:51:09,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:09,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:51:09,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:09,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:51:09,161 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-06-16 15:51:09,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:51:09,171 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:51:09,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:51:09,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:09,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:51:09,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:09,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:51:09,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:09,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:51:09,205 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 15:51:09,205 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:51:09,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661801360] [2021-06-16 15:51:09,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661801360] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:51:09,206 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:51:09,206 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-16 15:51:09,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372564061] [2021-06-16 15:51:09,206 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-16 15:51:09,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:51:09,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-16 15:51:09,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-16 15:51:09,207 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 15:51:09,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:51:09,316 INFO L93 Difference]: Finished difference Result 368 states and 632 transitions. [2021-06-16 15:51:09,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-16 15:51:09,317 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 15:51:09,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:51:09,318 INFO L225 Difference]: With dead ends: 368 [2021-06-16 15:51:09,318 INFO L226 Difference]: Without dead ends: 242 [2021-06-16 15:51:09,318 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 111.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-16 15:51:09,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-06-16 15:51:09,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-06-16 15:51:09,321 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 15:51:09,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 421 transitions. [2021-06-16 15:51:09,322 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 421 transitions. Word has length 46 [2021-06-16 15:51:09,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:51:09,322 INFO L482 AbstractCegarLoop]: Abstraction has 242 states and 421 transitions. [2021-06-16 15:51:09,322 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 15:51:09,322 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 421 transitions. [2021-06-16 15:51:09,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 15:51:09,323 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:51:09,323 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 15:51:09,323 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-16 15:51:09,323 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:51:09,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:51:09,323 INFO L82 PathProgramCache]: Analyzing trace with hash -354582396, now seen corresponding path program 1 times [2021-06-16 15:51:09,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:51:09,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667704998] [2021-06-16 15:51:09,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:51:09,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:51:09,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:09,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:51:09,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:09,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:51:09,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:09,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:51:09,353 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:51:09,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:51:09,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:09,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:51:09,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:09,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:51:09,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:51:09,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:51:09,385 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 15:51:09,385 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:51:09,385 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667704998] [2021-06-16 15:51:09,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667704998] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:51:09,386 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:51:09,386 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:51:09,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001463270] [2021-06-16 15:51:09,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:51:09,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:51:09,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:51:09,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:51:09,387 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 15:51:09,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:51:09,498 INFO L93 Difference]: Finished difference Result 210 states and 361 transitions. [2021-06-16 15:51:09,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 15:51:09,499 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 15:51:09,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:51:09,499 INFO L225 Difference]: With dead ends: 210 [2021-06-16 15:51:09,499 INFO L226 Difference]: Without dead ends: 0 [2021-06-16 15:51:09,499 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 115.5ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-16 15:51:09,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-16 15:51:09,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-16 15:51:09,500 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 15:51:09,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-16 15:51:09,500 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2021-06-16 15:51:09,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:51:09,500 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-16 15:51:09,500 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 15:51:09,500 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-16 15:51:09,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-16 15:51:09,501 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-16 15:51:09,502 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-16 15:51:09,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.06 03:51:09 BasicIcfg [2021-06-16 15:51:09,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-16 15:51:09,506 INFO L168 Benchmark]: Toolchain (without parser) took 2979.43 ms. Allocated memory was 208.7 MB in the beginning and 250.6 MB in the end (delta: 41.9 MB). Free memory was 172.9 MB in the beginning and 215.4 MB in the end (delta: -42.5 MB). Peak memory consumption was 135.6 kB. Max. memory is 8.0 GB. [2021-06-16 15:51:09,506 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 208.7 MB. Free memory is still 190.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 15:51:09,507 INFO L168 Benchmark]: CACSL2BoogieTranslator took 435.98 ms. Allocated memory is still 208.7 MB. Free memory was 172.7 MB in the beginning and 172.5 MB in the end (delta: 229.7 kB). Peak memory consumption was 15.8 MB. Max. memory is 8.0 GB. [2021-06-16 15:51:09,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.49 ms. Allocated memory is still 208.7 MB. Free memory was 172.5 MB in the beginning and 170.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-16 15:51:09,510 INFO L168 Benchmark]: Boogie Preprocessor took 26.57 ms. Allocated memory is still 208.7 MB. Free memory was 170.4 MB in the beginning and 168.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-16 15:51:09,510 INFO L168 Benchmark]: RCFGBuilder took 394.37 ms. Allocated memory is still 208.7 MB. Free memory was 168.8 MB in the beginning and 147.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-06-16 15:51:09,510 INFO L168 Benchmark]: TraceAbstraction took 2070.75 ms. Allocated memory was 208.7 MB in the beginning and 250.6 MB in the end (delta: 41.9 MB). Free memory was 147.8 MB in the beginning and 215.4 MB in the end (delta: -67.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 15:51:09,513 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 208.7 MB. Free memory is still 190.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 435.98 ms. Allocated memory is still 208.7 MB. Free memory was 172.7 MB in the beginning and 172.5 MB in the end (delta: 229.7 kB). Peak memory consumption was 15.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 46.49 ms. Allocated memory is still 208.7 MB. Free memory was 172.5 MB in the beginning and 170.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.57 ms. Allocated memory is still 208.7 MB. Free memory was 170.4 MB in the beginning and 168.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 394.37 ms. Allocated memory is still 208.7 MB. Free memory was 168.8 MB in the beginning and 147.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2070.75 ms. Allocated memory was 208.7 MB in the beginning and 250.6 MB in the end (delta: 41.9 MB). Free memory was 147.8 MB in the beginning and 215.4 MB in the end (delta: -67.6 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: 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: 28, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 23, negative conditional: 0, negative unconditional: 23, 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: 1979.7ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 22.7ms, AutomataDifference: 844.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 186.7ms, PartialOrderReductionTime: 175.9ms, HoareTripleCheckerStatistics: 360 SDtfs, 538 SDslu, 1318 SDs, 0 SdLazy, 148 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 136.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 760.8ms 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: 67.7ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.0ms SsaConstructionTime, 111.1ms SatisfiabilityAnalysisTime, 600.4ms 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...