/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/safe022_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 15:48:51,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 15:48:51,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 15:48:51,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-16 15:48:51,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-16 15:48:51,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-16 15:48:51,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-16 15:48:51,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-16 15:48:51,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-16 15:48:51,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-16 15:48:51,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-16 15:48:51,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-16 15:48:51,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-16 15:48:51,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-16 15:48:51,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-16 15:48:51,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-16 15:48:51,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-16 15:48:51,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-16 15:48:51,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-16 15:48:51,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-16 15:48:51,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-16 15:48:51,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-16 15:48:51,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-16 15:48:51,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-16 15:48:51,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-16 15:48:51,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-16 15:48:51,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-16 15:48:51,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-16 15:48:51,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-16 15:48:51,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-16 15:48:51,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-16 15:48:51,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-16 15:48:51,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-16 15:48:51,797 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-16 15:48:51,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-16 15:48:51,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-16 15:48:51,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-16 15:48:51,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-16 15:48:51,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-16 15:48:51,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-16 15:48:51,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-16 15:48:51,807 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 15:48:51,864 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 15:48:51,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 15:48:51,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 15:48:51,869 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 15:48:51,869 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 15:48:51,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 15:48:51,869 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 15:48:51,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 15:48:51,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 15:48:51,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 15:48:51,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 15:48:51,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 15:48:51,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 15:48:51,871 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 15:48:51,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 15:48:51,871 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 15:48:51,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 15:48:51,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 15:48:51,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 15:48:51,872 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 15:48:51,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 15:48:51,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 15:48:51,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 15:48:51,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 15:48:51,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 15:48:51,873 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 15:48:51,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 15:48:51,873 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 15:48:51,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 15:48:51,873 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-16 15:48:51,874 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 15:48:52,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 15:48:52,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 15:48:52,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 15:48:52,300 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-16 15:48:52,301 INFO L275 PluginConnector]: CDTParser initialized [2021-06-16 15:48:52,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.opt.i [2021-06-16 15:48:52,362 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/797f9c0e3/7bf9b70bea7a410c8658bb2d5812fee4/FLAG0c232e42c [2021-06-16 15:48:53,017 INFO L306 CDTParser]: Found 1 translation units. [2021-06-16 15:48:53,017 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.opt.i [2021-06-16 15:48:53,031 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/797f9c0e3/7bf9b70bea7a410c8658bb2d5812fee4/FLAG0c232e42c [2021-06-16 15:48:53,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/797f9c0e3/7bf9b70bea7a410c8658bb2d5812fee4 [2021-06-16 15:48:53,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 15:48:53,115 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-16 15:48:53,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-16 15:48:53,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-16 15:48:53,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-16 15:48:53,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 03:48:53" (1/1) ... [2021-06-16 15:48:53,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31b5927c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:53, skipping insertion in model container [2021-06-16 15:48:53,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 03:48:53" (1/1) ... [2021-06-16 15:48:53,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-16 15:48:53,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-16 15:48:53,270 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/safe022_tso.opt.i[949,962] [2021-06-16 15:48:53,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 15:48:53,482 INFO L203 MainTranslator]: Completed pre-run [2021-06-16 15:48:53,509 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/safe022_tso.opt.i[949,962] [2021-06-16 15:48:53,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 15:48:53,640 INFO L208 MainTranslator]: Completed translation [2021-06-16 15:48:53,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:53 WrapperNode [2021-06-16 15:48:53,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-16 15:48:53,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 15:48:53,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 15:48:53,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 15:48:53,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:53" (1/1) ... [2021-06-16 15:48:53,702 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:53" (1/1) ... [2021-06-16 15:48:53,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 15:48:53,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 15:48:53,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 15:48:53,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 15:48:53,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:53" (1/1) ... [2021-06-16 15:48:53,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:53" (1/1) ... [2021-06-16 15:48:53,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:53" (1/1) ... [2021-06-16 15:48:53,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:53" (1/1) ... [2021-06-16 15:48:53,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:53" (1/1) ... [2021-06-16 15:48:53,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:53" (1/1) ... [2021-06-16 15:48:53,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:53" (1/1) ... [2021-06-16 15:48:53,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 15:48:53,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 15:48:53,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 15:48:53,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 15:48:53,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:53" (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 15:48:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-16 15:48:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-16 15:48:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-16 15:48:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-16 15:48:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-16 15:48:53,944 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-16 15:48:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-16 15:48:53,945 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-16 15:48:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-16 15:48:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-16 15:48:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 15:48:53,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 15:48:53,946 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 15:48:54,260 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 15:48:54,261 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-16 15:48:54,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 03:48:54 BoogieIcfgContainer [2021-06-16 15:48:54,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 15:48:54,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 15:48:54,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 15:48:54,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 15:48:54,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.06 03:48:53" (1/3) ... [2021-06-16 15:48:54,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29180896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 03:48:54, skipping insertion in model container [2021-06-16 15:48:54,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:53" (2/3) ... [2021-06-16 15:48:54,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29180896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 03:48:54, skipping insertion in model container [2021-06-16 15:48:54,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 03:48:54" (3/3) ... [2021-06-16 15:48:54,268 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_tso.opt.i [2021-06-16 15:48:54,272 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 15:48:54,272 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 15:48:54,272 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 15:48:54,273 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 15:48:54,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,292 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,292 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,293 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,293 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,293 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,294 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,294 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,295 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,295 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,295 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,295 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,295 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,295 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,297 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,297 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,297 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,297 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,301 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,301 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,301 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,302 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:54,303 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-16 15:48:54,318 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-16 15:48:54,332 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 15:48:54,332 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 15:48:54,332 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 15:48:54,332 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 15:48:54,332 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 15:48:54,332 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 15:48:54,332 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 15:48:54,332 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 15:48:54,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 1246 states, 1072 states have (on average 1.8656716417910448) internal successors, (2000), 1245 states have internal predecessors, (2000), 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 15:48:54,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-16 15:48:54,497 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:54,498 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 15:48:54,498 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:54,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:54,502 INFO L82 PathProgramCache]: Analyzing trace with hash -593502858, now seen corresponding path program 1 times [2021-06-16 15:48:54,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:54,508 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461857532] [2021-06-16 15:48:54,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:54,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:54,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:54,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:54,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:54,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:54,821 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-06-16 15:48:54,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:54,830 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:48:54,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:48:54,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:54,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:54,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:54,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:54,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:54,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:54,868 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 15:48:54,868 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:54,868 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461857532] [2021-06-16 15:48:54,869 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461857532] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:54,869 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:54,869 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:48:54,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594059959] [2021-06-16 15:48:54,871 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:48:54,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:54,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:48:54,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:48:54,886 INFO L87 Difference]: Start difference. First operand has 1246 states, 1072 states have (on average 1.8656716417910448) internal successors, (2000), 1245 states have internal predecessors, (2000), 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 15:48:55,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:55,027 INFO L93 Difference]: Finished difference Result 1589 states and 2534 transitions. [2021-06-16 15:48:55,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 15:48:55,028 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 15:48:55,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:55,037 INFO L225 Difference]: With dead ends: 1589 [2021-06-16 15:48:55,037 INFO L226 Difference]: Without dead ends: 398 [2021-06-16 15:48:55,038 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 116.4ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-16 15:48:55,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-06-16 15:48:55,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2021-06-16 15:48:55,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 391 states have (on average 1.7442455242966752) internal successors, (682), 397 states have internal predecessors, (682), 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 15:48:55,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 682 transitions. [2021-06-16 15:48:55,083 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 682 transitions. Word has length 41 [2021-06-16 15:48:55,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:55,084 INFO L482 AbstractCegarLoop]: Abstraction has 398 states and 682 transitions. [2021-06-16 15:48:55,084 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 15:48:55,084 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 682 transitions. [2021-06-16 15:48:55,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-06-16 15:48:55,086 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:55,086 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 15:48:55,086 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 15:48:55,086 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:55,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:55,087 INFO L82 PathProgramCache]: Analyzing trace with hash -458317833, now seen corresponding path program 1 times [2021-06-16 15:48:55,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:55,100 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764192970] [2021-06-16 15:48:55,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:55,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:55,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:55,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:55,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:55,156 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:48:55,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:48:55,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:55,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:55,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:55,187 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 15:48:55,187 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:55,187 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764192970] [2021-06-16 15:48:55,187 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764192970] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:55,187 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:55,188 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:48:55,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568931730] [2021-06-16 15:48:55,189 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:48:55,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:55,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:48:55,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:48:55,190 INFO L87 Difference]: Start difference. First operand 398 states and 682 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 15:48:55,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:55,285 INFO L93 Difference]: Finished difference Result 494 states and 885 transitions. [2021-06-16 15:48:55,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 15:48:55,286 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 15:48:55,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:55,287 INFO L225 Difference]: With dead ends: 494 [2021-06-16 15:48:55,287 INFO L226 Difference]: Without dead ends: 242 [2021-06-16 15:48:55,288 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 98.0ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-16 15:48:55,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-06-16 15:48:55,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-06-16 15:48:55,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 238 states have (on average 1.8445378151260505) internal successors, (439), 241 states have internal predecessors, (439), 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 15:48:55,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 439 transitions. [2021-06-16 15:48:55,297 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 439 transitions. Word has length 43 [2021-06-16 15:48:55,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:55,297 INFO L482 AbstractCegarLoop]: Abstraction has 242 states and 439 transitions. [2021-06-16 15:48:55,297 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 15:48:55,297 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 439 transitions. [2021-06-16 15:48:55,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-06-16 15:48:55,298 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:55,299 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 15:48:55,299 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 15:48:55,299 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:55,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:55,299 INFO L82 PathProgramCache]: Analyzing trace with hash -354582396, now seen corresponding path program 1 times [2021-06-16 15:48:55,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:55,300 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156084517] [2021-06-16 15:48:55,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:55,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:55,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:55,354 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:48:55,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:48:55,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:48:55,373 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:48:55,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:55,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:55,381 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 15:48:55,381 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:55,381 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156084517] [2021-06-16 15:48:55,381 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156084517] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:55,381 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:55,381 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-16 15:48:55,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309575124] [2021-06-16 15:48:55,382 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-16 15:48:55,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:55,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-16 15:48:55,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-16 15:48:55,383 INFO L87 Difference]: Start difference. First operand 242 states and 439 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 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 15:48:55,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:55,458 INFO L93 Difference]: Finished difference Result 290 states and 506 transitions. [2021-06-16 15:48:55,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 15:48:55,465 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 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 15:48:55,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:55,466 INFO L225 Difference]: With dead ends: 290 [2021-06-16 15:48:55,466 INFO L226 Difference]: Without dead ends: 210 [2021-06-16 15:48:55,467 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 69.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:48:55,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-06-16 15:48:55,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2021-06-16 15:48:55,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 206 states have (on average 1.7621359223300972) internal successors, (363), 209 states have internal predecessors, (363), 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 15:48:55,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 363 transitions. [2021-06-16 15:48:55,486 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 363 transitions. Word has length 46 [2021-06-16 15:48:55,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:55,487 INFO L482 AbstractCegarLoop]: Abstraction has 210 states and 363 transitions. [2021-06-16 15:48:55,487 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 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 15:48:55,487 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 363 transitions. [2021-06-16 15:48:55,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-06-16 15:48:55,488 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:55,488 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] [2021-06-16 15:48:55,488 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-16 15:48:55,488 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:55,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:55,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1255466775, now seen corresponding path program 1 times [2021-06-16 15:48:55,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:55,489 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632011701] [2021-06-16 15:48:55,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:55,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:55,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:55,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:55,569 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:48:55,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:48:55,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:48:55,605 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:48:55,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:55,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:55,616 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 15:48:55,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:55,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632011701] [2021-06-16 15:48:55,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632011701] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:55,620 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:55,620 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:48:55,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827108177] [2021-06-16 15:48:55,620 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:48:55,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:55,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:48:55,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:48:55,621 INFO L87 Difference]: Start difference. First operand 210 states and 363 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:55,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:55,721 INFO L93 Difference]: Finished difference Result 165 states and 245 transitions. [2021-06-16 15:48:55,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 15:48:55,721 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-06-16 15:48:55,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:55,723 INFO L225 Difference]: With dead ends: 165 [2021-06-16 15:48:55,723 INFO L226 Difference]: Without dead ends: 100 [2021-06-16 15:48:55,724 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 92.6ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-16 15:48:55,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-06-16 15:48:55,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2021-06-16 15:48:55,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 97 states have (on average 1.309278350515464) internal successors, (127), 99 states have internal predecessors, (127), 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 15:48:55,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 127 transitions. [2021-06-16 15:48:55,727 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 127 transitions. Word has length 47 [2021-06-16 15:48:55,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:55,727 INFO L482 AbstractCegarLoop]: Abstraction has 100 states and 127 transitions. [2021-06-16 15:48:55,727 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:55,727 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 127 transitions. [2021-06-16 15:48:55,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-16 15:48:55,729 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:55,729 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:48:55,730 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-16 15:48:55,730 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:55,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:55,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1496385846, now seen corresponding path program 1 times [2021-06-16 15:48:55,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:55,731 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241364669] [2021-06-16 15:48:55,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:55,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:55,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:55,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:55,769 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:48:55,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:48:55,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:55,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:55,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:55,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:55,825 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 15:48:55,825 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:55,825 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241364669] [2021-06-16 15:48:55,825 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241364669] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:55,825 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:55,825 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:48:55,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448689891] [2021-06-16 15:48:55,825 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:48:55,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:55,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:48:55,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:48:55,826 INFO L87 Difference]: Start difference. First operand 100 states and 127 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:55,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:55,885 INFO L93 Difference]: Finished difference Result 88 states and 111 transitions. [2021-06-16 15:48:55,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 15:48:55,885 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-06-16 15:48:55,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:55,885 INFO L225 Difference]: With dead ends: 88 [2021-06-16 15:48:55,885 INFO L226 Difference]: Without dead ends: 0 [2021-06-16 15:48:55,885 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 98.5ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:48:55,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-16 15:48:55,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-16 15:48:55,886 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 15:48:55,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-16 15:48:55,886 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2021-06-16 15:48:55,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:55,886 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-16 15:48:55,886 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:55,886 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-16 15:48:55,886 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-16 15:48:55,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-16 15:48:55,888 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-16 15:48:55,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.06 03:48:55 BasicIcfg [2021-06-16 15:48:55,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-16 15:48:55,890 INFO L168 Benchmark]: Toolchain (without parser) took 2775.31 ms. Allocated memory was 220.2 MB in the beginning and 306.2 MB in the end (delta: 86.0 MB). Free memory was 183.4 MB in the beginning and 268.7 MB in the end (delta: -85.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 8.0 GB. [2021-06-16 15:48:55,890 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 220.2 MB. Free memory is still 200.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 15:48:55,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 525.11 ms. Allocated memory is still 220.2 MB. Free memory was 183.2 MB in the beginning and 182.7 MB in the end (delta: 492.4 kB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-16 15:48:55,891 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.66 ms. Allocated memory is still 220.2 MB. Free memory was 182.7 MB in the beginning and 180.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-16 15:48:55,891 INFO L168 Benchmark]: Boogie Preprocessor took 31.59 ms. Allocated memory is still 220.2 MB. Free memory was 180.6 MB in the beginning and 179.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-16 15:48:55,892 INFO L168 Benchmark]: RCFGBuilder took 499.92 ms. Allocated memory is still 220.2 MB. Free memory was 179.5 MB in the beginning and 158.0 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-06-16 15:48:55,892 INFO L168 Benchmark]: TraceAbstraction took 1626.08 ms. Allocated memory was 220.2 MB in the beginning and 306.2 MB in the end (delta: 86.0 MB). Free memory was 157.5 MB in the beginning and 268.7 MB in the end (delta: -111.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 15:48:55,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 220.2 MB. Free memory is still 200.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 525.11 ms. Allocated memory is still 220.2 MB. Free memory was 183.2 MB in the beginning and 182.7 MB in the end (delta: 492.4 kB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 86.66 ms. Allocated memory is still 220.2 MB. Free memory was 182.7 MB in the beginning and 180.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.59 ms. Allocated memory is still 220.2 MB. Free memory was 180.6 MB in the beginning and 179.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 499.92 ms. Allocated memory is still 220.2 MB. Free memory was 179.5 MB in the beginning and 158.0 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1626.08 ms. Allocated memory was 220.2 MB in the beginning and 306.2 MB in the end (delta: 86.0 MB). Free memory was 157.5 MB in the beginning and 268.7 MB in the end (delta: -111.2 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: 2589, positive: 2444, positive conditional: 2444, positive unconditional: 0, negative: 145, negative conditional: 145, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2517, positive: 2444, positive conditional: 0, positive unconditional: 2444, 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: 465, positive: 458, positive conditional: 0, positive unconditional: 458, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 465, positive: 457, positive conditional: 0, positive unconditional: 457, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 16, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2517, positive: 1986, positive conditional: 0, positive unconditional: 1986, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 465, unknown conditional: 0, unknown unconditional: 465] , Statistics on independence cache: Total cache size (in pairs): 465, Positive cache size: 458, Positive conditional cache size: 0, Positive unconditional cache size: 458, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Independence queries for same thread: 72 - 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: 1557.2ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 20.0ms, AutomataDifference: 512.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 151.0ms, PartialOrderReductionTime: 142.3ms, HoareTripleCheckerStatistics: 331 SDtfs, 431 SDslu, 1147 SDs, 0 SdLazy, 155 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 100.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 474.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1246occurred 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: 66.3ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.9ms SsaConstructionTime, 93.1ms SatisfiabilityAnalysisTime, 575.7ms InterpolantComputationTime, 226 NumberOfCodeBlocks, 226 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 777 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...