/usr/bin/java -Xmx16000000000 -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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 17:28:01,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 17:28:01,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 17:28:01,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-10 17:28:01,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-10 17:28:01,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-10 17:28:01,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-10 17:28:01,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-10 17:28:01,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-10 17:28:01,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-10 17:28:01,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-10 17:28:01,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-10 17:28:01,893 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-10 17:28:01,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-10 17:28:01,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-10 17:28:01,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-10 17:28:01,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-10 17:28:01,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-10 17:28:01,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-10 17:28:01,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-10 17:28:01,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-10 17:28:01,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-10 17:28:01,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-10 17:28:01,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-10 17:28:01,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-10 17:28:01,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-10 17:28:01,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-10 17:28:01,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-10 17:28:01,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-10 17:28:01,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-10 17:28:01,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-10 17:28:01,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-10 17:28:01,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-10 17:28:01,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-10 17:28:01,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-10 17:28:01,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-10 17:28:01,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-10 17:28:01,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-10 17:28:01,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 17:28:01,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 17:28:01,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 17:28:01,922 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.epf [2021-03-10 17:28:01,951 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 17:28:01,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 17:28:01,952 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 17:28:01,952 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 17:28:01,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 17:28:01,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 17:28:01,954 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 17:28:01,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 17:28:01,955 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 17:28:01,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 17:28:01,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 17:28:01,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 17:28:01,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 17:28:01,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 17:28:01,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 17:28:01,956 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 17:28:01,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 17:28:01,956 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 17:28:01,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 17:28:01,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 17:28:01,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 17:28:01,956 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 17:28:01,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 17:28:01,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 17:28:01,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 17:28:01,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 17:28:01,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 17:28:01,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 17:28:01,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 17:28:01,957 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 17:28:01,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 17:28:01,957 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 17:28:02,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 17:28:02,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 17:28:02,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 17:28:02,239 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 17:28:02,240 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 17:28:02,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2021-03-10 17:28:02,294 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b9770408/f074ec1998a043bea96edf7fdf1bdefc/FLAGe4442acc2 [2021-03-10 17:28:02,732 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 17:28:02,732 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2021-03-10 17:28:02,744 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b9770408/f074ec1998a043bea96edf7fdf1bdefc/FLAGe4442acc2 [2021-03-10 17:28:03,066 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b9770408/f074ec1998a043bea96edf7fdf1bdefc [2021-03-10 17:28:03,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 17:28:03,072 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 17:28:03,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 17:28:03,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 17:28:03,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 17:28:03,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:28:03" (1/1) ... [2021-03-10 17:28:03,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b240ebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:03, skipping insertion in model container [2021-03-10 17:28:03,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:28:03" (1/1) ... [2021-03-10 17:28:03,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 17:28:03,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 17:28:03,223 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i[949,962] [2021-03-10 17:28:03,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:28:03,360 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 17:28:03,367 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i[949,962] [2021-03-10 17:28:03,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:28:03,425 INFO L208 MainTranslator]: Completed translation [2021-03-10 17:28:03,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:03 WrapperNode [2021-03-10 17:28:03,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 17:28:03,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 17:28:03,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 17:28:03,427 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 17:28:03,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:03" (1/1) ... [2021-03-10 17:28:03,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:03" (1/1) ... [2021-03-10 17:28:03,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 17:28:03,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 17:28:03,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 17:28:03,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 17:28:03,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:03" (1/1) ... [2021-03-10 17:28:03,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:03" (1/1) ... [2021-03-10 17:28:03,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:03" (1/1) ... [2021-03-10 17:28:03,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:03" (1/1) ... [2021-03-10 17:28:03,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:03" (1/1) ... [2021-03-10 17:28:03,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:03" (1/1) ... [2021-03-10 17:28:03,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:03" (1/1) ... [2021-03-10 17:28:03,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 17:28:03,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 17:28:03,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 17:28:03,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 17:28:03,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:03" (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 [2021-03-10 17:28:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 17:28:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-10 17:28:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 17:28:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 17:28:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-10 17:28:03,507 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-10 17:28:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-10 17:28:03,507 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-10 17:28:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-10 17:28:03,508 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-10 17:28:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 17:28:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-10 17:28:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 17:28:03,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 17:28:03,509 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 17:28:03,743 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 17:28:03,744 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-10 17:28:03,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:28:03 BoogieIcfgContainer [2021-03-10 17:28:03,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 17:28:03,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 17:28:03,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 17:28:03,748 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 17:28:03,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 05:28:03" (1/3) ... [2021-03-10 17:28:03,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c4d4c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:28:03, skipping insertion in model container [2021-03-10 17:28:03,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:28:03" (2/3) ... [2021-03-10 17:28:03,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c4d4c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:28:03, skipping insertion in model container [2021-03-10 17:28:03,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:28:03" (3/3) ... [2021-03-10 17:28:03,750 INFO L111 eAbstractionObserver]: Analyzing ICFG safe002_tso.opt.i [2021-03-10 17:28:03,754 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 17:28:03,754 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 17:28:03,756 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 17:28:03,757 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 17:28:03,775 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,775 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,775 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,776 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,776 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,776 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,777 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,777 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,778 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,778 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,779 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,779 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,779 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,779 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,779 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,782 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,782 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,785 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,785 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,795 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,795 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,795 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,796 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:28:03,800 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 17:28:03,812 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-10 17:28:03,828 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 17:28:03,828 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 17:28:03,828 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 17:28:03,828 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 17:28:03,828 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 17:28:03,828 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 17:28:03,828 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 17:28:03,828 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 17:28:03,835 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 83 places, 75 transitions, 165 flow [2021-03-10 17:28:04,222 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8819 states, 8817 states have (on average 3.5808097992514463) internal successors, (31572), 8818 states have internal predecessors, (31572), 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) [2021-03-10 17:28:04,257 INFO L276 IsEmpty]: Start isEmpty. Operand has 8819 states, 8817 states have (on average 3.5808097992514463) internal successors, (31572), 8818 states have internal predecessors, (31572), 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) [2021-03-10 17:28:04,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-03-10 17:28:04,281 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:28:04,282 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:28:04,282 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:28:04,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:28:04,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1780672703, now seen corresponding path program 1 times [2021-03-10 17:28:04,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:28:04,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119136550] [2021-03-10 17:28:04,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:28:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:28:04,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:28:04,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119136550] [2021-03-10 17:28:04,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:28:04,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:28:04,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406034] [2021-03-10 17:28:04,605 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:28:04,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:28:04,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:28:04,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:28:04,642 INFO L87 Difference]: Start difference. First operand has 8819 states, 8817 states have (on average 3.5808097992514463) internal successors, (31572), 8818 states have internal predecessors, (31572), 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 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:28:05,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:28:05,032 INFO L93 Difference]: Finished difference Result 16832 states and 57853 transitions. [2021-03-10 17:28:05,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-10 17:28:05,034 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-03-10 17:28:05,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:28:05,076 INFO L225 Difference]: With dead ends: 16832 [2021-03-10 17:28:05,077 INFO L226 Difference]: Without dead ends: 5404 [2021-03-10 17:28:05,077 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 209.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:28:05,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5404 states. [2021-03-10 17:28:05,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5404 to 4612. [2021-03-10 17:28:05,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4612 states, 4611 states have (on average 3.373454782042941) internal successors, (15555), 4611 states have internal predecessors, (15555), 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) [2021-03-10 17:28:05,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4612 states to 4612 states and 15555 transitions. [2021-03-10 17:28:05,283 INFO L78 Accepts]: Start accepts. Automaton has 4612 states and 15555 transitions. Word has length 40 [2021-03-10 17:28:05,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:28:05,285 INFO L480 AbstractCegarLoop]: Abstraction has 4612 states and 15555 transitions. [2021-03-10 17:28:05,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:28:05,288 INFO L276 IsEmpty]: Start isEmpty. Operand 4612 states and 15555 transitions. [2021-03-10 17:28:05,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-03-10 17:28:05,297 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:28:05,297 INFO L519 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] [2021-03-10 17:28:05,301 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 17:28:05,301 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:28:05,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:28:05,303 INFO L82 PathProgramCache]: Analyzing trace with hash 936081420, now seen corresponding path program 1 times [2021-03-10 17:28:05,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:28:05,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511233710] [2021-03-10 17:28:05,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:28:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:28:05,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:28:05,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511233710] [2021-03-10 17:28:05,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:28:05,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:28:05,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531448922] [2021-03-10 17:28:05,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:28:05,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:28:05,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:28:05,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:28:05,490 INFO L87 Difference]: Start difference. First operand 4612 states and 15555 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) [2021-03-10 17:28:05,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:28:05,678 INFO L93 Difference]: Finished difference Result 6340 states and 20963 transitions. [2021-03-10 17:28:05,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-10 17:28:05,679 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 [2021-03-10 17:28:05,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:28:05,702 INFO L225 Difference]: With dead ends: 6340 [2021-03-10 17:28:05,703 INFO L226 Difference]: Without dead ends: 5236 [2021-03-10 17:28:05,703 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 129.6ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:28:05,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5236 states. [2021-03-10 17:28:05,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5236 to 4052. [2021-03-10 17:28:05,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4052 states, 4051 states have (on average 3.354974080473957) internal successors, (13591), 4051 states have internal predecessors, (13591), 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) [2021-03-10 17:28:05,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4052 states to 4052 states and 13591 transitions. [2021-03-10 17:28:05,828 INFO L78 Accepts]: Start accepts. Automaton has 4052 states and 13591 transitions. Word has length 43 [2021-03-10 17:28:05,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:28:05,828 INFO L480 AbstractCegarLoop]: Abstraction has 4052 states and 13591 transitions. [2021-03-10 17:28:05,828 INFO L481 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) [2021-03-10 17:28:05,828 INFO L276 IsEmpty]: Start isEmpty. Operand 4052 states and 13591 transitions. [2021-03-10 17:28:05,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-03-10 17:28:05,836 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:28:05,836 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:28:05,836 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 17:28:05,836 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:28:05,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:28:05,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1813236477, now seen corresponding path program 1 times [2021-03-10 17:28:05,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:28:05,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820166359] [2021-03-10 17:28:05,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:28:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:28:05,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:28:05,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820166359] [2021-03-10 17:28:05,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:28:05,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 17:28:05,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133818796] [2021-03-10 17:28:05,932 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 17:28:05,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:28:05,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 17:28:05,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:28:05,933 INFO L87 Difference]: Start difference. First operand 4052 states and 13591 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:28:06,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:28:06,066 INFO L93 Difference]: Finished difference Result 5422 states and 18067 transitions. [2021-03-10 17:28:06,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 17:28:06,067 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-03-10 17:28:06,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:28:06,078 INFO L225 Difference]: With dead ends: 5422 [2021-03-10 17:28:06,078 INFO L226 Difference]: Without dead ends: 2650 [2021-03-10 17:28:06,079 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 99.8ms TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:28:06,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-03-10 17:28:06,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 2650. [2021-03-10 17:28:06,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2650 states, 2649 states have (on average 3.243865609664024) internal successors, (8593), 2649 states have internal predecessors, (8593), 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) [2021-03-10 17:28:06,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 8593 transitions. [2021-03-10 17:28:06,135 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 8593 transitions. Word has length 44 [2021-03-10 17:28:06,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:28:06,135 INFO L480 AbstractCegarLoop]: Abstraction has 2650 states and 8593 transitions. [2021-03-10 17:28:06,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:28:06,135 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 8593 transitions. [2021-03-10 17:28:06,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-03-10 17:28:06,140 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:28:06,140 INFO L519 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] [2021-03-10 17:28:06,140 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 17:28:06,140 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:28:06,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:28:06,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1935786254, now seen corresponding path program 1 times [2021-03-10 17:28:06,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:28:06,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29394804] [2021-03-10 17:28:06,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:28:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:28:06,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:28:06,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29394804] [2021-03-10 17:28:06,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:28:06,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:28:06,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186994987] [2021-03-10 17:28:06,279 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:28:06,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:28:06,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:28:06,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:28:06,280 INFO L87 Difference]: Start difference. First operand 2650 states and 8593 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) [2021-03-10 17:28:06,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:28:06,381 INFO L93 Difference]: Finished difference Result 2930 states and 9427 transitions. [2021-03-10 17:28:06,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:28:06,381 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 [2021-03-10 17:28:06,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:28:06,401 INFO L225 Difference]: With dead ends: 2930 [2021-03-10 17:28:06,401 INFO L226 Difference]: Without dead ends: 2530 [2021-03-10 17:28:06,402 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 78.3ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-03-10 17:28:06,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2530 states. [2021-03-10 17:28:06,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2530 to 2390. [2021-03-10 17:28:06,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2390 states, 2389 states have (on average 3.218920050230222) internal successors, (7690), 2389 states have internal predecessors, (7690), 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) [2021-03-10 17:28:06,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2390 states to 2390 states and 7690 transitions. [2021-03-10 17:28:06,446 INFO L78 Accepts]: Start accepts. Automaton has 2390 states and 7690 transitions. Word has length 47 [2021-03-10 17:28:06,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:28:06,446 INFO L480 AbstractCegarLoop]: Abstraction has 2390 states and 7690 transitions. [2021-03-10 17:28:06,446 INFO L481 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) [2021-03-10 17:28:06,446 INFO L276 IsEmpty]: Start isEmpty. Operand 2390 states and 7690 transitions. [2021-03-10 17:28:06,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-03-10 17:28:06,450 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:28:06,450 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:28:06,450 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 17:28:06,450 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:28:06,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:28:06,450 INFO L82 PathProgramCache]: Analyzing trace with hash 409909020, now seen corresponding path program 1 times [2021-03-10 17:28:06,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:28:06,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587245043] [2021-03-10 17:28:06,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:28:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:28:06,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:28:06,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587245043] [2021-03-10 17:28:06,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:28:06,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:28:06,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366289837] [2021-03-10 17:28:06,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:28:06,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:28:06,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:28:06,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:28:06,545 INFO L87 Difference]: Start difference. First operand 2390 states and 7690 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:28:06,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:28:06,616 INFO L93 Difference]: Finished difference Result 3770 states and 12149 transitions. [2021-03-10 17:28:06,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 17:28:06,617 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-03-10 17:28:06,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:28:06,623 INFO L225 Difference]: With dead ends: 3770 [2021-03-10 17:28:06,623 INFO L226 Difference]: Without dead ends: 2100 [2021-03-10 17:28:06,623 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 64.7ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:28:06,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2021-03-10 17:28:06,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 2100. [2021-03-10 17:28:06,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2099 states have (on average 3.2229633158646975) internal successors, (6765), 2099 states have internal predecessors, (6765), 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) [2021-03-10 17:28:06,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 6765 transitions. [2021-03-10 17:28:06,684 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 6765 transitions. Word has length 48 [2021-03-10 17:28:06,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:28:06,685 INFO L480 AbstractCegarLoop]: Abstraction has 2100 states and 6765 transitions. [2021-03-10 17:28:06,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:28:06,685 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 6765 transitions. [2021-03-10 17:28:06,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-03-10 17:28:06,689 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:28:06,689 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:28:06,689 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 17:28:06,689 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:28:06,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:28:06,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1361658786, now seen corresponding path program 2 times [2021-03-10 17:28:06,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:28:06,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139065500] [2021-03-10 17:28:06,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:28:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:28:06,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:28:06,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139065500] [2021-03-10 17:28:06,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:28:06,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:28:06,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795432695] [2021-03-10 17:28:06,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:28:06,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:28:06,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:28:06,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:28:06,789 INFO L87 Difference]: Start difference. First operand 2100 states and 6765 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:28:06,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:28:06,874 INFO L93 Difference]: Finished difference Result 2780 states and 8897 transitions. [2021-03-10 17:28:06,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:28:06,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-03-10 17:28:06,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:28:06,880 INFO L225 Difference]: With dead ends: 2780 [2021-03-10 17:28:06,880 INFO L226 Difference]: Without dead ends: 1948 [2021-03-10 17:28:06,881 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 64.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:28:06,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2021-03-10 17:28:06,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1948. [2021-03-10 17:28:06,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1948 states, 1947 states have (on average 3.1931176168464304) internal successors, (6217), 1947 states have internal predecessors, (6217), 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) [2021-03-10 17:28:06,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1948 states to 1948 states and 6217 transitions. [2021-03-10 17:28:06,919 INFO L78 Accepts]: Start accepts. Automaton has 1948 states and 6217 transitions. Word has length 48 [2021-03-10 17:28:06,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:28:06,919 INFO L480 AbstractCegarLoop]: Abstraction has 1948 states and 6217 transitions. [2021-03-10 17:28:06,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:28:06,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1948 states and 6217 transitions. [2021-03-10 17:28:06,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-03-10 17:28:06,923 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:28:06,923 INFO L519 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] [2021-03-10 17:28:06,923 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-10 17:28:06,923 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:28:06,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:28:06,923 INFO L82 PathProgramCache]: Analyzing trace with hash 536019477, now seen corresponding path program 1 times [2021-03-10 17:28:06,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:28:06,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715073071] [2021-03-10 17:28:06,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:28:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:28:07,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:28:07,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715073071] [2021-03-10 17:28:07,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:28:07,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:28:07,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487715015] [2021-03-10 17:28:07,010 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:28:07,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:28:07,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:28:07,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:28:07,011 INFO L87 Difference]: Start difference. First operand 1948 states and 6217 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) [2021-03-10 17:28:07,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:28:07,107 INFO L93 Difference]: Finished difference Result 2218 states and 6919 transitions. [2021-03-10 17:28:07,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:28:07,107 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 [2021-03-10 17:28:07,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:28:07,111 INFO L225 Difference]: With dead ends: 2218 [2021-03-10 17:28:07,111 INFO L226 Difference]: Without dead ends: 1498 [2021-03-10 17:28:07,111 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 74.9ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-03-10 17:28:07,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2021-03-10 17:28:07,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1498. [2021-03-10 17:28:07,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 3.0507682030728125) internal successors, (4567), 1497 states have internal predecessors, (4567), 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) [2021-03-10 17:28:07,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 4567 transitions. [2021-03-10 17:28:07,137 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 4567 transitions. Word has length 49 [2021-03-10 17:28:07,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:28:07,137 INFO L480 AbstractCegarLoop]: Abstraction has 1498 states and 4567 transitions. [2021-03-10 17:28:07,137 INFO L481 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) [2021-03-10 17:28:07,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 4567 transitions. [2021-03-10 17:28:07,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-03-10 17:28:07,139 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:28:07,140 INFO L519 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, 1] [2021-03-10 17:28:07,140 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-10 17:28:07,140 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:28:07,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:28:07,140 INFO L82 PathProgramCache]: Analyzing trace with hash 413003034, now seen corresponding path program 1 times [2021-03-10 17:28:07,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:28:07,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116838194] [2021-03-10 17:28:07,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:28:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:28:07,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:28:07,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116838194] [2021-03-10 17:28:07,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:28:07,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-10 17:28:07,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914960778] [2021-03-10 17:28:07,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 17:28:07,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:28:07,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 17:28:07,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:28:07,228 INFO L87 Difference]: Start difference. First operand 1498 states and 4567 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2021-03-10 17:28:07,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:28:07,343 INFO L93 Difference]: Finished difference Result 1309 states and 3874 transitions. [2021-03-10 17:28:07,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 17:28:07,344 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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 50 [2021-03-10 17:28:07,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:28:07,346 INFO L225 Difference]: With dead ends: 1309 [2021-03-10 17:28:07,346 INFO L226 Difference]: Without dead ends: 877 [2021-03-10 17:28:07,346 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 94.4ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:28:07,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2021-03-10 17:28:07,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 877. [2021-03-10 17:28:07,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 876 states have (on average 2.8504566210045663) internal successors, (2497), 876 states have internal predecessors, (2497), 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) [2021-03-10 17:28:07,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 2497 transitions. [2021-03-10 17:28:07,359 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 2497 transitions. Word has length 50 [2021-03-10 17:28:07,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:28:07,360 INFO L480 AbstractCegarLoop]: Abstraction has 877 states and 2497 transitions. [2021-03-10 17:28:07,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2021-03-10 17:28:07,360 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 2497 transitions. [2021-03-10 17:28:07,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-03-10 17:28:07,362 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:28:07,362 INFO L519 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, 1, 1, 1] [2021-03-10 17:28:07,362 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-10 17:28:07,362 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:28:07,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:28:07,362 INFO L82 PathProgramCache]: Analyzing trace with hash 418798187, now seen corresponding path program 1 times [2021-03-10 17:28:07,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:28:07,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055524630] [2021-03-10 17:28:07,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:28:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:28:07,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:28:07,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055524630] [2021-03-10 17:28:07,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:28:07,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-10 17:28:07,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803935096] [2021-03-10 17:28:07,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-10 17:28:07,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:28:07,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-10 17:28:07,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-10 17:28:07,434 INFO L87 Difference]: Start difference. First operand 877 states and 2497 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2021-03-10 17:28:07,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:28:07,481 INFO L93 Difference]: Finished difference Result 823 states and 2335 transitions. [2021-03-10 17:28:07,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 17:28:07,482 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2021-03-10 17:28:07,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:28:07,482 INFO L225 Difference]: With dead ends: 823 [2021-03-10 17:28:07,482 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 17:28:07,482 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 62.5ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:28:07,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 17:28:07,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 17:28:07,482 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) [2021-03-10 17:28:07,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 17:28:07,483 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2021-03-10 17:28:07,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:28:07,483 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 17:28:07,483 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2021-03-10 17:28:07,483 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 17:28:07,483 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 17:28:07,483 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-10 17:28:07,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 05:28:07 BasicIcfg [2021-03-10 17:28:07,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 17:28:07,487 INFO L168 Benchmark]: Toolchain (without parser) took 4417.51 ms. Allocated memory was 379.6 MB in the beginning and 492.8 MB in the end (delta: 113.2 MB). Free memory was 342.2 MB in the beginning and 196.1 MB in the end (delta: 146.0 MB). Peak memory consumption was 260.5 MB. Max. memory is 16.0 GB. [2021-03-10 17:28:07,487 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 379.6 MB. Free memory was 360.3 MB in the beginning and 360.3 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 17:28:07,488 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.38 ms. Allocated memory is still 379.6 MB. Free memory was 341.6 MB in the beginning and 340.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-03-10 17:28:07,489 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.53 ms. Allocated memory is still 379.6 MB. Free memory was 340.3 MB in the beginning and 339.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 17:28:07,489 INFO L168 Benchmark]: Boogie Preprocessor took 13.83 ms. Allocated memory is still 379.6 MB. Free memory was 339.2 MB in the beginning and 337.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:28:07,489 INFO L168 Benchmark]: RCFGBuilder took 280.39 ms. Allocated memory is still 379.6 MB. Free memory was 337.1 MB in the beginning and 313.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-10 17:28:07,489 INFO L168 Benchmark]: TraceAbstraction took 3740.13 ms. Allocated memory was 379.6 MB in the beginning and 492.8 MB in the end (delta: 113.2 MB). Free memory was 313.0 MB in the beginning and 196.1 MB in the end (delta: 116.8 MB). Peak memory consumption was 232.2 MB. Max. memory is 16.0 GB. [2021-03-10 17:28:07,495 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 379.6 MB. Free memory was 360.3 MB in the beginning and 360.3 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 351.38 ms. Allocated memory is still 379.6 MB. Free memory was 341.6 MB in the beginning and 340.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.53 ms. Allocated memory is still 379.6 MB. Free memory was 340.3 MB in the beginning and 339.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.83 ms. Allocated memory is still 379.6 MB. Free memory was 339.2 MB in the beginning and 337.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 280.39 ms. Allocated memory is still 379.6 MB. Free memory was 337.1 MB in the beginning and 313.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3740.13 ms. Allocated memory was 379.6 MB in the beginning and 492.8 MB in the end (delta: 113.2 MB). Free memory was 313.0 MB in the beginning and 196.1 MB in the end (delta: 116.8 MB). Peak memory consumption was 232.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3658.2ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 94.3ms, AutomataDifference: 1394.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 393.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 857 SDtfs, 1399 SDslu, 2957 SDs, 0 SdLazy, 374 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 232.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 878.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8819occurred in iteration=0, InterpolantAutomatonStates: 91, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 558.0ms AutomataMinimizationTime, 9 MinimizatonAttempts, 2116 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 30.8ms SsaConstructionTime, 156.3ms SatisfiabilityAnalysisTime, 855.2ms InterpolantComputationTime, 421 NumberOfCodeBlocks, 421 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 412 ConstructedInterpolants, 0 QuantifiedInterpolants, 1558 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...