/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 18:04:25,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 18:04:25,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 18:04:26,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 18:04:26,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 18:04:26,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 18:04:26,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 18:04:26,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 18:04:26,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 18:04:26,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 18:04:26,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 18:04:26,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 18:04:26,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 18:04:26,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 18:04:26,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 18:04:26,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 18:04:26,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 18:04:26,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 18:04:26,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 18:04:26,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 18:04:26,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 18:04:26,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 18:04:26,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 18:04:26,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 18:04:26,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-11 18:04:26,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-11 18:04:26,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-11 18:04:26,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-11 18:04:26,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-11 18:04:26,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-11 18:04:26,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 18:04:26,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 18:04:26,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 18:04:26,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 18:04:26,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 18:04:26,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 18:04:26,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 18:04:26,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 18:04:26,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 18:04:26,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 18:04:26,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 18:04:26,090 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 [2020-11-11 18:04:26,117 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 18:04:26,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 18:04:26,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 18:04:26,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 18:04:26,119 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 18:04:26,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 18:04:26,120 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 18:04:26,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 18:04:26,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 18:04:26,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 18:04:26,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 18:04:26,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 18:04:26,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 18:04:26,121 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 18:04:26,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 18:04:26,122 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 18:04:26,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 18:04:26,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 18:04:26,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 18:04:26,123 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 18:04:26,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 18:04:26,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:04:26,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 18:04:26,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 18:04:26,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 18:04:26,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 18:04:26,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 18:04:26,125 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-11 18:04:26,125 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 18:04:26,125 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 18:04:26,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 18:04:26,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 18:04:26,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 18:04:26,549 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 18:04:26,553 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 18:04:26,554 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i [2020-11-11 18:04:26,656 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f51cfcf92/096927c9149442d0a8ac57967bcde422/FLAGe8e5520fb [2020-11-11 18:04:27,433 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 18:04:27,434 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i [2020-11-11 18:04:27,450 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f51cfcf92/096927c9149442d0a8ac57967bcde422/FLAGe8e5520fb [2020-11-11 18:04:27,675 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f51cfcf92/096927c9149442d0a8ac57967bcde422 [2020-11-11 18:04:27,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 18:04:27,692 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 18:04:27,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 18:04:27,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 18:04:27,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 18:04:27,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:04:27" (1/1) ... [2020-11-11 18:04:27,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ec25281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:04:27, skipping insertion in model container [2020-11-11 18:04:27,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:04:27" (1/1) ... [2020-11-11 18:04:27,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 18:04:27,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 18:04:28,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:04:28,271 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 18:04:28,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:04:28,441 INFO L208 MainTranslator]: Completed translation [2020-11-11 18:04:28,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:04:28 WrapperNode [2020-11-11 18:04:28,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 18:04:28,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 18:04:28,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 18:04:28,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 18:04:28,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:04:28" (1/1) ... [2020-11-11 18:04:28,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:04:28" (1/1) ... [2020-11-11 18:04:28,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 18:04:28,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 18:04:28,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 18:04:28,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 18:04:28,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:04:28" (1/1) ... [2020-11-11 18:04:28,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:04:28" (1/1) ... [2020-11-11 18:04:28,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:04:28" (1/1) ... [2020-11-11 18:04:28,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:04:28" (1/1) ... [2020-11-11 18:04:28,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:04:28" (1/1) ... [2020-11-11 18:04:28,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:04:28" (1/1) ... [2020-11-11 18:04:28,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:04:28" (1/1) ... [2020-11-11 18:04:28,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 18:04:28,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 18:04:28,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 18:04:28,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 18:04:28,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:04:28" (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 [2020-11-11 18:04:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 18:04:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 18:04:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 18:04:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 18:04:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-11 18:04:28,605 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-11 18:04:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-11 18:04:28,606 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-11 18:04:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-11 18:04:28,606 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-11 18:04:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 18:04:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 18:04:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 18:04:28,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 18:04:28,608 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 18:04:29,141 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 18:04:29,141 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-11 18:04:29,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:04:29 BoogieIcfgContainer [2020-11-11 18:04:29,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 18:04:29,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 18:04:29,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 18:04:29,149 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 18:04:29,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:04:27" (1/3) ... [2020-11-11 18:04:29,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20d52cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:04:29, skipping insertion in model container [2020-11-11 18:04:29,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:04:28" (2/3) ... [2020-11-11 18:04:29,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20d52cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:04:29, skipping insertion in model container [2020-11-11 18:04:29,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:04:29" (3/3) ... [2020-11-11 18:04:29,153 INFO L111 eAbstractionObserver]: Analyzing ICFG safe004_tso.oepc.i [2020-11-11 18:04:29,170 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 18:04:29,170 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 18:04:29,174 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 18:04:29,175 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 18:04:29,208 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,208 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,208 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,208 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,209 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,209 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,209 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,209 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,210 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,210 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,210 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,210 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,211 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,211 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,211 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,211 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,212 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,212 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,212 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,212 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,214 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,214 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,214 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,214 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,214 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,215 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,215 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,215 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,215 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,216 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,216 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,216 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,219 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,219 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,219 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,219 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,224 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,225 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,225 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,225 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,227 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,228 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,228 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,228 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:04:29,230 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-11 18:04:29,244 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-11 18:04:29,270 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 18:04:29,270 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 18:04:29,270 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 18:04:29,271 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 18:04:29,271 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 18:04:29,271 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 18:04:29,271 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 18:04:29,271 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 18:04:29,284 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 78 transitions, 171 flow [2020-11-11 18:04:30,147 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9847 states, 9845 states have (on average 3.614931437277806) internal successors, (35589), 9846 states have internal predecessors, (35589), 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) [2020-11-11 18:04:30,188 INFO L276 IsEmpty]: Start isEmpty. Operand has 9847 states, 9845 states have (on average 3.614931437277806) internal successors, (35589), 9846 states have internal predecessors, (35589), 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) [2020-11-11 18:04:30,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-11 18:04:30,297 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:04:30,298 INFO L494 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] [2020-11-11 18:04:30,299 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:04:30,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:04:30,306 INFO L82 PathProgramCache]: Analyzing trace with hash -578983952, now seen corresponding path program 1 times [2020-11-11 18:04:30,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:04:30,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880825079] [2020-11-11 18:04:30,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:04:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:04:30,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:04:30,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880825079] [2020-11-11 18:04:30,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:04:30,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:04:30,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462898910] [2020-11-11 18:04:30,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:04:30,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:04:30,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:04:30,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:04:30,899 INFO L87 Difference]: Start difference. First operand has 9847 states, 9845 states have (on average 3.614931437277806) internal successors, (35589), 9846 states have internal predecessors, (35589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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) [2020-11-11 18:04:31,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:04:31,334 INFO L93 Difference]: Finished difference Result 12199 states and 42463 transitions. [2020-11-11 18:04:31,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:04:31,337 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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 [2020-11-11 18:04:31,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:04:31,407 INFO L225 Difference]: With dead ends: 12199 [2020-11-11 18:04:31,407 INFO L226 Difference]: Without dead ends: 4604 [2020-11-11 18:04:31,410 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:04:31,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4604 states. [2020-11-11 18:04:31,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4604 to 4604. [2020-11-11 18:04:31,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4604 states, 4603 states have (on average 3.4158157723223983) internal successors, (15723), 4603 states have internal predecessors, (15723), 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) [2020-11-11 18:04:31,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4604 states to 4604 states and 15723 transitions. [2020-11-11 18:04:31,841 INFO L78 Accepts]: Start accepts. Automaton has 4604 states and 15723 transitions. Word has length 41 [2020-11-11 18:04:31,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:04:31,843 INFO L481 AbstractCegarLoop]: Abstraction has 4604 states and 15723 transitions. [2020-11-11 18:04:31,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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) [2020-11-11 18:04:31,844 INFO L276 IsEmpty]: Start isEmpty. Operand 4604 states and 15723 transitions. [2020-11-11 18:04:31,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-11 18:04:31,857 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:04:31,857 INFO L494 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] [2020-11-11 18:04:31,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 18:04:31,858 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:04:31,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:04:31,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1767731663, now seen corresponding path program 1 times [2020-11-11 18:04:31,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:04:31,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556371555] [2020-11-11 18:04:31,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:04:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:04:32,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:04:32,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556371555] [2020-11-11 18:04:32,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:04:32,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:04:32,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635426958] [2020-11-11 18:04:32,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:04:32,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:04:32,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:04:32,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:04:32,035 INFO L87 Difference]: Start difference. First operand 4604 states and 15723 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 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) [2020-11-11 18:04:32,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:04:32,286 INFO L93 Difference]: Finished difference Result 5344 states and 18040 transitions. [2020-11-11 18:04:32,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:04:32,287 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 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 [2020-11-11 18:04:32,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:04:32,387 INFO L225 Difference]: With dead ends: 5344 [2020-11-11 18:04:32,387 INFO L226 Difference]: Without dead ends: 4364 [2020-11-11 18:04:32,388 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:04:32,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4364 states. [2020-11-11 18:04:32,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4364 to 4364. [2020-11-11 18:04:32,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4364 states, 4363 states have (on average 3.3946825578730233) internal successors, (14811), 4363 states have internal predecessors, (14811), 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) [2020-11-11 18:04:32,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4364 states to 4364 states and 14811 transitions. [2020-11-11 18:04:32,589 INFO L78 Accepts]: Start accepts. Automaton has 4364 states and 14811 transitions. Word has length 43 [2020-11-11 18:04:32,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:04:32,590 INFO L481 AbstractCegarLoop]: Abstraction has 4364 states and 14811 transitions. [2020-11-11 18:04:32,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 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) [2020-11-11 18:04:32,590 INFO L276 IsEmpty]: Start isEmpty. Operand 4364 states and 14811 transitions. [2020-11-11 18:04:32,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-11 18:04:32,602 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:04:32,602 INFO L494 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] [2020-11-11 18:04:32,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 18:04:32,603 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:04:32,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:04:32,604 INFO L82 PathProgramCache]: Analyzing trace with hash 280082414, now seen corresponding path program 1 times [2020-11-11 18:04:32,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:04:32,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534117839] [2020-11-11 18:04:32,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:04:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:04:32,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:04:32,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534117839] [2020-11-11 18:04:32,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:04:32,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:04:32,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983289046] [2020-11-11 18:04:32,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:04:32,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:04:32,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:04:32,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:04:32,816 INFO L87 Difference]: Start difference. First operand 4364 states and 14811 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:04:32,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:04:32,996 INFO L93 Difference]: Finished difference Result 4880 states and 16363 transitions. [2020-11-11 18:04:32,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:04:32,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2020-11-11 18:04:32,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:04:33,031 INFO L225 Difference]: With dead ends: 4880 [2020-11-11 18:04:33,032 INFO L226 Difference]: Without dead ends: 4020 [2020-11-11 18:04:33,032 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:04:33,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4020 states. [2020-11-11 18:04:33,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4020 to 4020. [2020-11-11 18:04:33,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4020 states, 4019 states have (on average 3.370738989798457) internal successors, (13547), 4019 states have internal predecessors, (13547), 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) [2020-11-11 18:04:33,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4020 states to 4020 states and 13547 transitions. [2020-11-11 18:04:33,213 INFO L78 Accepts]: Start accepts. Automaton has 4020 states and 13547 transitions. Word has length 45 [2020-11-11 18:04:33,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:04:33,214 INFO L481 AbstractCegarLoop]: Abstraction has 4020 states and 13547 transitions. [2020-11-11 18:04:33,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:04:33,217 INFO L276 IsEmpty]: Start isEmpty. Operand 4020 states and 13547 transitions. [2020-11-11 18:04:33,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-11 18:04:33,238 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:04:33,238 INFO L494 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] [2020-11-11 18:04:33,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 18:04:33,239 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:04:33,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:04:33,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1176584974, now seen corresponding path program 1 times [2020-11-11 18:04:33,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:04:33,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025316695] [2020-11-11 18:04:33,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:04:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:04:33,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:04:33,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025316695] [2020-11-11 18:04:33,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:04:33,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:04:33,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429507628] [2020-11-11 18:04:33,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:04:33,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:04:33,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:04:33,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:04:33,481 INFO L87 Difference]: Start difference. First operand 4020 states and 13547 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:04:33,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:04:33,731 INFO L93 Difference]: Finished difference Result 5848 states and 19614 transitions. [2020-11-11 18:04:33,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:04:33,731 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2020-11-11 18:04:33,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:04:33,762 INFO L225 Difference]: With dead ends: 5848 [2020-11-11 18:04:33,762 INFO L226 Difference]: Without dead ends: 3788 [2020-11-11 18:04:33,762 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-11 18:04:33,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3788 states. [2020-11-11 18:04:33,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3788 to 3788. [2020-11-11 18:04:33,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3788 states, 3787 states have (on average 3.342751518352258) internal successors, (12659), 3787 states have internal predecessors, (12659), 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) [2020-11-11 18:04:33,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3788 states to 3788 states and 12659 transitions. [2020-11-11 18:04:33,930 INFO L78 Accepts]: Start accepts. Automaton has 3788 states and 12659 transitions. Word has length 46 [2020-11-11 18:04:33,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:04:33,931 INFO L481 AbstractCegarLoop]: Abstraction has 3788 states and 12659 transitions. [2020-11-11 18:04:33,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:04:33,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3788 states and 12659 transitions. [2020-11-11 18:04:33,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-11 18:04:33,941 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:04:33,941 INFO L494 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] [2020-11-11 18:04:33,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 18:04:33,942 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:04:33,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:04:33,942 INFO L82 PathProgramCache]: Analyzing trace with hash 969736422, now seen corresponding path program 1 times [2020-11-11 18:04:33,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:04:33,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159456626] [2020-11-11 18:04:33,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:04:33,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:04:34,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:04:34,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159456626] [2020-11-11 18:04:34,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:04:34,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:04:34,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017862232] [2020-11-11 18:04:34,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:04:34,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:04:34,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:04:34,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:04:34,184 INFO L87 Difference]: Start difference. First operand 3788 states and 12659 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) [2020-11-11 18:04:34,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:04:34,460 INFO L93 Difference]: Finished difference Result 7040 states and 23090 transitions. [2020-11-11 18:04:34,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-11 18:04:34,461 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 [2020-11-11 18:04:34,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:04:34,487 INFO L225 Difference]: With dead ends: 7040 [2020-11-11 18:04:34,488 INFO L226 Difference]: Without dead ends: 4152 [2020-11-11 18:04:34,488 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-11 18:04:34,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4152 states. [2020-11-11 18:04:34,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4152 to 2952. [2020-11-11 18:04:34,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2952 states, 2951 states have (on average 3.2392409352761775) internal successors, (9559), 2951 states have internal predecessors, (9559), 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) [2020-11-11 18:04:34,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2952 states to 2952 states and 9559 transitions. [2020-11-11 18:04:34,647 INFO L78 Accepts]: Start accepts. Automaton has 2952 states and 9559 transitions. Word has length 47 [2020-11-11 18:04:34,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:04:34,649 INFO L481 AbstractCegarLoop]: Abstraction has 2952 states and 9559 transitions. [2020-11-11 18:04:34,649 INFO L482 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) [2020-11-11 18:04:34,649 INFO L276 IsEmpty]: Start isEmpty. Operand 2952 states and 9559 transitions. [2020-11-11 18:04:34,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-11 18:04:34,660 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:04:34,660 INFO L494 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] [2020-11-11 18:04:34,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 18:04:34,661 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:04:34,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:04:34,661 INFO L82 PathProgramCache]: Analyzing trace with hash -991149868, now seen corresponding path program 1 times [2020-11-11 18:04:34,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:04:34,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838734159] [2020-11-11 18:04:34,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:04:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:04:34,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:04:34,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838734159] [2020-11-11 18:04:34,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:04:34,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:04:34,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066188103] [2020-11-11 18:04:34,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:04:34,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:04:34,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:04:34,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:04:34,832 INFO L87 Difference]: Start difference. First operand 2952 states and 9559 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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) [2020-11-11 18:04:35,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:04:35,033 INFO L93 Difference]: Finished difference Result 4024 states and 12911 transitions. [2020-11-11 18:04:35,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:04:35,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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 [2020-11-11 18:04:35,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:04:35,042 INFO L225 Difference]: With dead ends: 4024 [2020-11-11 18:04:35,042 INFO L226 Difference]: Without dead ends: 1801 [2020-11-11 18:04:35,043 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:04:35,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2020-11-11 18:04:35,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1801. [2020-11-11 18:04:35,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1800 states have (on average 3.1655555555555557) internal successors, (5698), 1800 states have internal predecessors, (5698), 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) [2020-11-11 18:04:35,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 5698 transitions. [2020-11-11 18:04:35,111 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 5698 transitions. Word has length 47 [2020-11-11 18:04:35,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:04:35,111 INFO L481 AbstractCegarLoop]: Abstraction has 1801 states and 5698 transitions. [2020-11-11 18:04:35,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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) [2020-11-11 18:04:35,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 5698 transitions. [2020-11-11 18:04:35,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-11 18:04:35,117 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:04:35,117 INFO L494 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] [2020-11-11 18:04:35,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-11 18:04:35,118 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:04:35,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:04:35,119 INFO L82 PathProgramCache]: Analyzing trace with hash 608113037, now seen corresponding path program 1 times [2020-11-11 18:04:35,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:04:35,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878773953] [2020-11-11 18:04:35,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:04:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:04:35,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:04:35,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878773953] [2020-11-11 18:04:35,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:04:35,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:04:35,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684315431] [2020-11-11 18:04:35,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:04:35,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:04:35,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:04:35,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:04:35,277 INFO L87 Difference]: Start difference. First operand 1801 states and 5698 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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) [2020-11-11 18:04:35,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:04:35,416 INFO L93 Difference]: Finished difference Result 2261 states and 7082 transitions. [2020-11-11 18:04:35,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:04:35,417 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 [2020-11-11 18:04:35,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:04:35,424 INFO L225 Difference]: With dead ends: 2261 [2020-11-11 18:04:35,424 INFO L226 Difference]: Without dead ends: 1645 [2020-11-11 18:04:35,425 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:04:35,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1645 states. [2020-11-11 18:04:35,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1645 to 1645. [2020-11-11 18:04:35,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1645 states, 1644 states have (on average 3.1411192214111923) internal successors, (5164), 1644 states have internal predecessors, (5164), 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) [2020-11-11 18:04:35,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 5164 transitions. [2020-11-11 18:04:35,480 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 5164 transitions. Word has length 49 [2020-11-11 18:04:35,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:04:35,481 INFO L481 AbstractCegarLoop]: Abstraction has 1645 states and 5164 transitions. [2020-11-11 18:04:35,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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) [2020-11-11 18:04:35,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 5164 transitions. [2020-11-11 18:04:35,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-11 18:04:35,486 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:04:35,486 INFO L494 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] [2020-11-11 18:04:35,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-11 18:04:35,486 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:04:35,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:04:35,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1984353874, now seen corresponding path program 1 times [2020-11-11 18:04:35,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:04:35,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766078568] [2020-11-11 18:04:35,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:04:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:04:35,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:04:35,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766078568] [2020-11-11 18:04:35,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:04:35,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:04:35,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582160820] [2020-11-11 18:04:35,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:04:35,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:04:35,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:04:35,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:04:35,634 INFO L87 Difference]: Start difference. First operand 1645 states and 5164 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 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) [2020-11-11 18:04:35,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:04:35,815 INFO L93 Difference]: Finished difference Result 1804 states and 5531 transitions. [2020-11-11 18:04:35,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:04:35,816 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 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 [2020-11-11 18:04:35,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:04:35,821 INFO L225 Difference]: With dead ends: 1804 [2020-11-11 18:04:35,822 INFO L226 Difference]: Without dead ends: 1300 [2020-11-11 18:04:35,822 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-11 18:04:35,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2020-11-11 18:04:35,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 1300. [2020-11-11 18:04:35,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 1299 states have (on average 3.0361816782140107) internal successors, (3944), 1299 states have internal predecessors, (3944), 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) [2020-11-11 18:04:35,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 3944 transitions. [2020-11-11 18:04:35,897 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 3944 transitions. Word has length 50 [2020-11-11 18:04:35,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:04:35,898 INFO L481 AbstractCegarLoop]: Abstraction has 1300 states and 3944 transitions. [2020-11-11 18:04:35,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 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) [2020-11-11 18:04:35,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 3944 transitions. [2020-11-11 18:04:35,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-11 18:04:35,905 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:04:35,905 INFO L494 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] [2020-11-11 18:04:35,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-11 18:04:35,905 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:04:35,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:04:35,906 INFO L82 PathProgramCache]: Analyzing trace with hash -126840041, now seen corresponding path program 1 times [2020-11-11 18:04:35,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:04:35,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698237833] [2020-11-11 18:04:35,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:04:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:04:36,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:04:36,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698237833] [2020-11-11 18:04:36,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:04:36,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-11 18:04:36,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610058695] [2020-11-11 18:04:36,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-11 18:04:36,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:04:36,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-11 18:04:36,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-11 18:04:36,021 INFO L87 Difference]: Start difference. First operand 1300 states and 3944 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 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) [2020-11-11 18:04:36,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:04:36,200 INFO L93 Difference]: Finished difference Result 1066 states and 3101 transitions. [2020-11-11 18:04:36,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-11 18:04:36,200 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 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 51 [2020-11-11 18:04:36,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:04:36,203 INFO L225 Difference]: With dead ends: 1066 [2020-11-11 18:04:36,203 INFO L226 Difference]: Without dead ends: 742 [2020-11-11 18:04:36,204 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-11 18:04:36,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2020-11-11 18:04:36,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2020-11-11 18:04:36,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 741 states have (on average 2.8124156545209176) internal successors, (2084), 741 states have internal predecessors, (2084), 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) [2020-11-11 18:04:36,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 2084 transitions. [2020-11-11 18:04:36,227 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 2084 transitions. Word has length 51 [2020-11-11 18:04:36,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:04:36,228 INFO L481 AbstractCegarLoop]: Abstraction has 742 states and 2084 transitions. [2020-11-11 18:04:36,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 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) [2020-11-11 18:04:36,228 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 2084 transitions. [2020-11-11 18:04:36,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-11 18:04:36,230 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:04:36,231 INFO L494 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, 1] [2020-11-11 18:04:36,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-11 18:04:36,231 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:04:36,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:04:36,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1190692008, now seen corresponding path program 1 times [2020-11-11 18:04:36,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:04:36,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739944092] [2020-11-11 18:04:36,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:04:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:04:36,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:04:36,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739944092] [2020-11-11 18:04:36,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:04:36,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:04:36,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088199184] [2020-11-11 18:04:36,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:04:36,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:04:36,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:04:36,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:04:36,310 INFO L87 Difference]: Start difference. First operand 742 states and 2084 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2020-11-11 18:04:36,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:04:36,369 INFO L93 Difference]: Finished difference Result 634 states and 1760 transitions. [2020-11-11 18:04:36,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-11 18:04:36,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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 53 [2020-11-11 18:04:36,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:04:36,370 INFO L225 Difference]: With dead ends: 634 [2020-11-11 18:04:36,370 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 18:04:36,371 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-11 18:04:36,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 18:04:36,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 18:04:36,371 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) [2020-11-11 18:04:36,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 18:04:36,372 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2020-11-11 18:04:36,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:04:36,372 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 18:04:36,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2020-11-11 18:04:36,372 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 18:04:36,372 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 18:04:36,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-11 18:04:36,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:04:36 BasicIcfg [2020-11-11 18:04:36,378 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 18:04:36,380 INFO L168 Benchmark]: Toolchain (without parser) took 8693.76 ms. Allocated memory was 304.1 MB in the beginning and 1.1 GB in the end (delta: 759.2 MB). Free memory was 279.8 MB in the beginning and 842.7 MB in the end (delta: -562.9 MB). Peak memory consumption was 198.4 MB. Max. memory is 16.0 GB. [2020-11-11 18:04:36,381 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 304.1 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:04:36,382 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.13 ms. Allocated memory is still 304.1 MB. Free memory was 279.0 MB in the beginning and 286.0 MB in the end (delta: -7.0 MB). Peak memory consumption was 37.0 MB. Max. memory is 16.0 GB. [2020-11-11 18:04:36,382 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.84 ms. Allocated memory is still 304.1 MB. Free memory was 286.0 MB in the beginning and 283.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:04:36,383 INFO L168 Benchmark]: Boogie Preprocessor took 28.84 ms. Allocated memory is still 304.1 MB. Free memory was 283.7 MB in the beginning and 282.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:04:36,384 INFO L168 Benchmark]: RCFGBuilder took 620.12 ms. Allocated memory is still 304.1 MB. Free memory was 282.7 MB in the beginning and 258.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:04:36,385 INFO L168 Benchmark]: TraceAbstraction took 7232.25 ms. Allocated memory was 304.1 MB in the beginning and 1.1 GB in the end (delta: 759.2 MB). Free memory was 257.5 MB in the beginning and 842.7 MB in the end (delta: -585.2 MB). Peak memory consumption was 174.0 MB. Max. memory is 16.0 GB. [2020-11-11 18:04:36,388 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 304.1 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 746.13 ms. Allocated memory is still 304.1 MB. Free memory was 279.0 MB in the beginning and 286.0 MB in the end (delta: -7.0 MB). Peak memory consumption was 37.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.84 ms. Allocated memory is still 304.1 MB. Free memory was 286.0 MB in the beginning and 283.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.84 ms. Allocated memory is still 304.1 MB. Free memory was 283.7 MB in the beginning and 282.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 620.12 ms. Allocated memory is still 304.1 MB. Free memory was 282.7 MB in the beginning and 258.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7232.25 ms. Allocated memory was 304.1 MB in the beginning and 1.1 GB in the end (delta: 759.2 MB). Free memory was 257.5 MB in the beginning and 842.7 MB in the end (delta: -585.2 MB). Peak memory consumption was 174.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.1s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 990 SDtfs, 1213 SDslu, 3094 SDs, 0 SdLazy, 352 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9847occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 1200 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 472 NumberOfCodeBlocks, 472 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 462 ConstructedInterpolants, 0 QuantifiedInterpolants, 56632 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...