/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-New_States.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:25:25,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:25:25,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:25:26,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:25:26,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:25:26,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:25:26,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:25:26,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:25:26,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:25:26,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:25:26,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:25:26,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:25:26,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:25:26,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:25:26,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:25:26,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:25:26,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:25:26,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:25:26,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:25:26,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:25:26,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:25:26,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:25:26,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:25:26,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:25:26,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 12:25:26,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 12:25:26,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 12:25:26,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 12:25:26,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 12:25:26,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 12:25:26,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:25:26,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:25:26,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:25:26,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:25:26,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:25:26,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:25:26,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:25:26,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:25:26,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:25:26,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:25:26,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:25:26,116 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-New_States.epf [2020-11-12 12:25:26,167 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:25:26,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:25:26,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:25:26,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:25:26,169 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:25:26,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:25:26,170 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:25:26,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:25:26,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:25:26,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:25:26,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:25:26,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:25:26,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:25:26,171 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:25:26,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:25:26,172 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:25:26,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:25:26,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:25:26,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:25:26,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:25:26,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:25:26,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:25:26,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:25:26,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:25:26,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:25:26,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:25:26,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:25:26,175 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:25:26,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:25:26,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:25:26,175 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:25:26,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:25:26,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:25:26,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:25:26,588 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:25:26,589 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:25:26,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-11-12 12:25:26,693 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2ee3df7f/2f6b2d00ff91496fa9be6fdb975fc3f2/FLAGf20e51156 [2020-11-12 12:25:27,443 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:25:27,444 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-11-12 12:25:27,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2ee3df7f/2f6b2d00ff91496fa9be6fdb975fc3f2/FLAGf20e51156 [2020-11-12 12:25:27,741 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2ee3df7f/2f6b2d00ff91496fa9be6fdb975fc3f2 [2020-11-12 12:25:27,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:25:27,751 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:25:27,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:25:27,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:25:27,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:25:27,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:25:27" (1/1) ... [2020-11-12 12:25:27,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bc46986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:27, skipping insertion in model container [2020-11-12 12:25:27,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:25:27" (1/1) ... [2020-11-12 12:25:27,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:25:27,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:25:28,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:25:28,335 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:25:28,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:25:28,522 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:25:28,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:28 WrapperNode [2020-11-12 12:25:28,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:25:28,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:25:28,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:25:28,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:25:28,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:28" (1/1) ... [2020-11-12 12:25:28,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:28" (1/1) ... [2020-11-12 12:25:28,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:25:28,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:25:28,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:25:28,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:25:28,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:28" (1/1) ... [2020-11-12 12:25:28,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:28" (1/1) ... [2020-11-12 12:25:28,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:28" (1/1) ... [2020-11-12 12:25:28,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:28" (1/1) ... [2020-11-12 12:25:28,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:28" (1/1) ... [2020-11-12 12:25:28,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:28" (1/1) ... [2020-11-12 12:25:28,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:28" (1/1) ... [2020-11-12 12:25:28,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:25:28,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:25:28,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:25:28,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:25:28,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:28" (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 [2020-11-12 12:25:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:25:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:25:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:25:28,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:25:28,742 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:25:28,742 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:25:28,742 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:25:28,742 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:25:28,742 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 12:25:28,743 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 12:25:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-12 12:25:28,743 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-12 12:25:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:25:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:25:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:25:28,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:25:28,745 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 12:25:29,322 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:25:29,322 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:25:29,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:25:29 BoogieIcfgContainer [2020-11-12 12:25:29,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:25:29,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:25:29,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:25:29,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:25:29,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:25:27" (1/3) ... [2020-11-12 12:25:29,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3309fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:25:29, skipping insertion in model container [2020-11-12 12:25:29,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:25:28" (2/3) ... [2020-11-12 12:25:29,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3309fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:25:29, skipping insertion in model container [2020-11-12 12:25:29,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:25:29" (3/3) ... [2020-11-12 12:25:29,340 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2020-11-12 12:25:29,358 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:25:29,359 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:25:29,363 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:25:29,364 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:25:29,411 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,412 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,412 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,412 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,413 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,413 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,419 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,419 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,420 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,420 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,421 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,421 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,421 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,421 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,421 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,422 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,422 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,423 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,423 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,424 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,426 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,426 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,426 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,426 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,427 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,427 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,431 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,431 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,431 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,432 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,432 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,432 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,432 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,432 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,433 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,433 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,433 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,433 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,440 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,441 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,441 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,441 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,448 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,448 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,448 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,449 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,454 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,454 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,455 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,455 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,457 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,457 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,458 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,458 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:25:29,460 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:25:29,475 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-12 12:25:29,515 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:25:29,516 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:25:29,516 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:25:29,516 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:25:29,516 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:25:29,516 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:25:29,516 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:25:29,517 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:25:29,529 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 91 transitions, 202 flow [2020-11-12 12:25:39,122 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 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) [2020-11-12 12:25:42,808 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 3683ms [2020-11-12 12:25:43,006 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 54313 states, 54311 states have (on average 4.420191121503931) internal successors, (240065), 54312 states have internal predecessors, (240065), 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) [2020-11-12 12:25:43,477 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 211984 states, 195367 states have (on average 1.212405370405442) internal successors, (236864), 211983 states have internal predecessors, (236864), 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) [2020-11-12 12:25:43,601 INFO L276 IsEmpty]: Start isEmpty. Operand has 211984 states, 195367 states have (on average 1.212405370405442) internal successors, (236864), 211983 states have internal predecessors, (236864), 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) [2020-11-12 12:25:43,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 12:25:43,663 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:25:43,664 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] [2020-11-12 12:25:43,664 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:25:43,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:25:43,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1453792105, now seen corresponding path program 1 times [2020-11-12 12:25:43,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:25:43,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808266798] [2020-11-12 12:25:43,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:25:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:25:44,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:25:44,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808266798] [2020-11-12 12:25:44,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:25:44,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:25:44,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461529250] [2020-11-12 12:25:44,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:25:44,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:25:44,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:25:44,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:25:44,302 INFO L87 Difference]: Start difference. First operand has 211984 states, 195367 states have (on average 1.212405370405442) internal successors, (236864), 211983 states have internal predecessors, (236864), 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 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) [2020-11-12 12:25:45,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:25:45,491 INFO L93 Difference]: Finished difference Result 89084 states and 106194 transitions. [2020-11-12 12:25:45,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:25:45,506 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 [2020-11-12 12:25:45,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:25:45,676 INFO L225 Difference]: With dead ends: 89084 [2020-11-12 12:25:45,677 INFO L226 Difference]: Without dead ends: 24183 [2020-11-12 12:25:45,678 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 [2020-11-12 12:25:45,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24183 states. [2020-11-12 12:25:46,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24183 to 24183. [2020-11-12 12:25:46,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24183 states, 22923 states have (on average 1.3830214195349648) internal successors, (31703), 24182 states have internal predecessors, (31703), 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) [2020-11-12 12:25:47,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24183 states to 24183 states and 31703 transitions. [2020-11-12 12:25:47,034 INFO L78 Accepts]: Start accepts. Automaton has 24183 states and 31703 transitions. Word has length 47 [2020-11-12 12:25:47,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:25:47,034 INFO L481 AbstractCegarLoop]: Abstraction has 24183 states and 31703 transitions. [2020-11-12 12:25:47,035 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) [2020-11-12 12:25:47,035 INFO L276 IsEmpty]: Start isEmpty. Operand 24183 states and 31703 transitions. [2020-11-12 12:25:47,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-12 12:25:47,061 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:25:47,062 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] [2020-11-12 12:25:47,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:25:47,062 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:25:47,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:25:47,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1614803638, now seen corresponding path program 1 times [2020-11-12 12:25:47,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:25:47,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220062887] [2020-11-12 12:25:47,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:25:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:25:47,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:25:47,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220062887] [2020-11-12 12:25:47,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:25:47,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:25:47,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439958458] [2020-11-12 12:25:47,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:25:47,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:25:47,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:25:47,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:25:47,280 INFO L87 Difference]: Start difference. First operand 24183 states and 31703 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) [2020-11-12 12:25:47,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:25:47,495 INFO L93 Difference]: Finished difference Result 25011 states and 32927 transitions. [2020-11-12 12:25:47,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:25:47,495 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 [2020-11-12 12:25:47,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:25:47,562 INFO L225 Difference]: With dead ends: 25011 [2020-11-12 12:25:47,562 INFO L226 Difference]: Without dead ends: 17817 [2020-11-12 12:25:47,564 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 [2020-11-12 12:25:47,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17817 states. [2020-11-12 12:25:47,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17817 to 17817. [2020-11-12 12:25:47,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17817 states, 16917 states have (on average 1.3891943015901165) internal successors, (23501), 17816 states have internal predecessors, (23501), 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) [2020-11-12 12:25:48,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17817 states to 17817 states and 23501 transitions. [2020-11-12 12:25:48,010 INFO L78 Accepts]: Start accepts. Automaton has 17817 states and 23501 transitions. Word has length 49 [2020-11-12 12:25:48,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:25:48,011 INFO L481 AbstractCegarLoop]: Abstraction has 17817 states and 23501 transitions. [2020-11-12 12:25:48,011 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) [2020-11-12 12:25:48,011 INFO L276 IsEmpty]: Start isEmpty. Operand 17817 states and 23501 transitions. [2020-11-12 12:25:48,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 12:25:48,184 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:25:48,184 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] [2020-11-12 12:25:48,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:25:48,185 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:25:48,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:25:48,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1054740085, now seen corresponding path program 1 times [2020-11-12 12:25:48,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:25:48,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945411645] [2020-11-12 12:25:48,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:25:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:25:48,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:25:48,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945411645] [2020-11-12 12:25:48,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:25:48,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:25:48,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581595294] [2020-11-12 12:25:48,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:25:48,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:25:48,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:25:48,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:25:48,425 INFO L87 Difference]: Start difference. First operand 17817 states and 23501 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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) [2020-11-12 12:25:48,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:25:48,707 INFO L93 Difference]: Finished difference Result 25325 states and 34167 transitions. [2020-11-12 12:25:48,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:25:48,708 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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 [2020-11-12 12:25:48,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:25:48,732 INFO L225 Difference]: With dead ends: 25325 [2020-11-12 12:25:48,732 INFO L226 Difference]: Without dead ends: 11520 [2020-11-12 12:25:48,733 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:25:48,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11520 states. [2020-11-12 12:25:48,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11520 to 11520. [2020-11-12 12:25:48,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11520 states, 10920 states have (on average 1.3875457875457875) internal successors, (15152), 11519 states have internal predecessors, (15152), 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) [2020-11-12 12:25:48,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11520 states to 11520 states and 15152 transitions. [2020-11-12 12:25:48,980 INFO L78 Accepts]: Start accepts. Automaton has 11520 states and 15152 transitions. Word has length 51 [2020-11-12 12:25:48,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:25:48,981 INFO L481 AbstractCegarLoop]: Abstraction has 11520 states and 15152 transitions. [2020-11-12 12:25:48,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 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) [2020-11-12 12:25:48,981 INFO L276 IsEmpty]: Start isEmpty. Operand 11520 states and 15152 transitions. [2020-11-12 12:25:48,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-12 12:25:48,998 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:25:48,998 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] [2020-11-12 12:25:48,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:25:48,999 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:25:48,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:25:48,999 INFO L82 PathProgramCache]: Analyzing trace with hash -510481820, now seen corresponding path program 1 times [2020-11-12 12:25:49,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:25:49,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707781887] [2020-11-12 12:25:49,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:25:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:25:49,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:25:49,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707781887] [2020-11-12 12:25:49,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:25:49,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:25:49,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772462198] [2020-11-12 12:25:49,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:25:49,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:25:49,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:25:49,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:25:49,130 INFO L87 Difference]: Start difference. First operand 11520 states and 15152 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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) [2020-11-12 12:25:49,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:25:49,426 INFO L93 Difference]: Finished difference Result 16581 states and 22394 transitions. [2020-11-12 12:25:49,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:25:49,426 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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 [2020-11-12 12:25:49,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:25:49,441 INFO L225 Difference]: With dead ends: 16581 [2020-11-12 12:25:49,441 INFO L226 Difference]: Without dead ends: 7569 [2020-11-12 12:25:49,442 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:25:49,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7569 states. [2020-11-12 12:25:49,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7569 to 7569. [2020-11-12 12:25:49,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7569 states, 7169 states have (on average 1.3656018970567723) internal successors, (9790), 7568 states have internal predecessors, (9790), 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) [2020-11-12 12:25:49,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7569 states to 7569 states and 9790 transitions. [2020-11-12 12:25:49,606 INFO L78 Accepts]: Start accepts. Automaton has 7569 states and 9790 transitions. Word has length 53 [2020-11-12 12:25:49,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:25:49,606 INFO L481 AbstractCegarLoop]: Abstraction has 7569 states and 9790 transitions. [2020-11-12 12:25:49,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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) [2020-11-12 12:25:49,606 INFO L276 IsEmpty]: Start isEmpty. Operand 7569 states and 9790 transitions. [2020-11-12 12:25:49,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-12 12:25:49,618 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:25:49,618 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, 1, 1] [2020-11-12 12:25:49,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:25:49,619 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:25:49,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:25:49,619 INFO L82 PathProgramCache]: Analyzing trace with hash -417078397, now seen corresponding path program 1 times [2020-11-12 12:25:49,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:25:49,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488261122] [2020-11-12 12:25:49,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:25:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:25:49,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:25:49,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488261122] [2020-11-12 12:25:49,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:25:49,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:25:49,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825861646] [2020-11-12 12:25:49,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:25:49,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:25:49,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:25:49,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:25:49,759 INFO L87 Difference]: Start difference. First operand 7569 states and 9790 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2020-11-12 12:25:49,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:25:49,914 INFO L93 Difference]: Finished difference Result 9072 states and 11207 transitions. [2020-11-12 12:25:49,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:25:49,915 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 55 [2020-11-12 12:25:49,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:25:49,930 INFO L225 Difference]: With dead ends: 9072 [2020-11-12 12:25:49,930 INFO L226 Difference]: Without dead ends: 7468 [2020-11-12 12:25:49,931 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 [2020-11-12 12:25:49,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7468 states. [2020-11-12 12:25:50,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7468 to 7468. [2020-11-12 12:25:50,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7468 states, 7072 states have (on average 1.3574660633484164) internal successors, (9600), 7467 states have internal predecessors, (9600), 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) [2020-11-12 12:25:50,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7468 states to 7468 states and 9600 transitions. [2020-11-12 12:25:50,108 INFO L78 Accepts]: Start accepts. Automaton has 7468 states and 9600 transitions. Word has length 55 [2020-11-12 12:25:50,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:25:50,109 INFO L481 AbstractCegarLoop]: Abstraction has 7468 states and 9600 transitions. [2020-11-12 12:25:50,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2020-11-12 12:25:50,109 INFO L276 IsEmpty]: Start isEmpty. Operand 7468 states and 9600 transitions. [2020-11-12 12:25:50,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-12 12:25:50,132 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:25:50,132 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, 1, 1, 1] [2020-11-12 12:25:50,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:25:50,133 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:25:50,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:25:50,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1334794895, now seen corresponding path program 1 times [2020-11-12 12:25:50,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:25:50,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338672561] [2020-11-12 12:25:50,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:25:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:25:50,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:25:50,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338672561] [2020-11-12 12:25:50,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:25:50,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:25:50,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437684920] [2020-11-12 12:25:50,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:25:50,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:25:50,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:25:50,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:25:50,325 INFO L87 Difference]: Start difference. First operand 7468 states and 9600 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2020-11-12 12:25:50,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:25:50,512 INFO L93 Difference]: Finished difference Result 8622 states and 10696 transitions. [2020-11-12 12:25:50,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:25:50,513 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 56 [2020-11-12 12:25:50,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:25:50,526 INFO L225 Difference]: With dead ends: 8622 [2020-11-12 12:25:50,526 INFO L226 Difference]: Without dead ends: 6662 [2020-11-12 12:25:50,527 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 12:25:50,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6662 states. [2020-11-12 12:25:50,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6662 to 6662. [2020-11-12 12:25:50,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6662 states, 6302 states have (on average 1.313868613138686) internal successors, (8280), 6661 states have internal predecessors, (8280), 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) [2020-11-12 12:25:50,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6662 states to 6662 states and 8280 transitions. [2020-11-12 12:25:50,675 INFO L78 Accepts]: Start accepts. Automaton has 6662 states and 8280 transitions. Word has length 56 [2020-11-12 12:25:50,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:25:50,676 INFO L481 AbstractCegarLoop]: Abstraction has 6662 states and 8280 transitions. [2020-11-12 12:25:50,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2020-11-12 12:25:50,676 INFO L276 IsEmpty]: Start isEmpty. Operand 6662 states and 8280 transitions. [2020-11-12 12:25:50,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-12 12:25:50,688 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:25:50,688 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, 1, 1, 1, 1] [2020-11-12 12:25:50,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 12:25:50,688 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:25:50,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:25:50,689 INFO L82 PathProgramCache]: Analyzing trace with hash -387736074, now seen corresponding path program 1 times [2020-11-12 12:25:50,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:25:50,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466713162] [2020-11-12 12:25:50,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:25:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:25:50,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:25:50,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466713162] [2020-11-12 12:25:50,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:25:50,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 12:25:50,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558685423] [2020-11-12 12:25:50,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 12:25:50,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:25:50,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 12:25:50,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 12:25:50,901 INFO L87 Difference]: Start difference. First operand 6662 states and 8280 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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) [2020-11-12 12:25:51,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:25:51,129 INFO L93 Difference]: Finished difference Result 6413 states and 7678 transitions. [2020-11-12 12:25:51,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-12 12:25:51,130 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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 57 [2020-11-12 12:25:51,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:25:51,141 INFO L225 Difference]: With dead ends: 6413 [2020-11-12 12:25:51,141 INFO L226 Difference]: Without dead ends: 4343 [2020-11-12 12:25:51,142 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-12 12:25:51,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4343 states. [2020-11-12 12:25:51,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4343 to 4343. [2020-11-12 12:25:51,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4343 states, 4100 states have (on average 1.2170731707317073) internal successors, (4990), 4342 states have internal predecessors, (4990), 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) [2020-11-12 12:25:51,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4343 states to 4343 states and 4990 transitions. [2020-11-12 12:25:51,241 INFO L78 Accepts]: Start accepts. Automaton has 4343 states and 4990 transitions. Word has length 57 [2020-11-12 12:25:51,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:25:51,241 INFO L481 AbstractCegarLoop]: Abstraction has 4343 states and 4990 transitions. [2020-11-12 12:25:51,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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) [2020-11-12 12:25:51,242 INFO L276 IsEmpty]: Start isEmpty. Operand 4343 states and 4990 transitions. [2020-11-12 12:25:51,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-12 12:25:51,250 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:25:51,250 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, 1, 1, 1, 1, 1, 1] [2020-11-12 12:25:51,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 12:25:51,250 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:25:51,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:25:51,251 INFO L82 PathProgramCache]: Analyzing trace with hash 838927701, now seen corresponding path program 1 times [2020-11-12 12:25:51,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:25:51,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143144581] [2020-11-12 12:25:51,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:25:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:25:51,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:25:51,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143144581] [2020-11-12 12:25:51,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:25:51,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:25:51,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924869504] [2020-11-12 12:25:51,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:25:51,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:25:51,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:25:51,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:25:51,483 INFO L87 Difference]: Start difference. First operand 4343 states and 4990 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2020-11-12 12:25:51,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:25:51,608 INFO L93 Difference]: Finished difference Result 7620 states and 8570 transitions. [2020-11-12 12:25:51,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:25:51,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 59 [2020-11-12 12:25:51,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:25:51,624 INFO L225 Difference]: With dead ends: 7620 [2020-11-12 12:25:51,624 INFO L226 Difference]: Without dead ends: 4801 [2020-11-12 12:25:51,625 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:25:51,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4801 states. [2020-11-12 12:25:51,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4801 to 4231. [2020-11-12 12:25:51,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4231 states, 3988 states have (on average 1.198345035105316) internal successors, (4779), 4230 states have internal predecessors, (4779), 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) [2020-11-12 12:25:51,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4231 states to 4231 states and 4779 transitions. [2020-11-12 12:25:51,716 INFO L78 Accepts]: Start accepts. Automaton has 4231 states and 4779 transitions. Word has length 59 [2020-11-12 12:25:51,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:25:51,717 INFO L481 AbstractCegarLoop]: Abstraction has 4231 states and 4779 transitions. [2020-11-12 12:25:51,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2020-11-12 12:25:51,717 INFO L276 IsEmpty]: Start isEmpty. Operand 4231 states and 4779 transitions. [2020-11-12 12:25:51,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-12 12:25:51,724 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:25:51,724 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, 1, 1, 1, 1, 1, 1] [2020-11-12 12:25:51,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-12 12:25:51,724 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:25:51,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:25:51,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1519523829, now seen corresponding path program 1 times [2020-11-12 12:25:51,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:25:51,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827633253] [2020-11-12 12:25:51,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:25:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:25:51,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:25:51,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827633253] [2020-11-12 12:25:51,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:25:51,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:25:51,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728347455] [2020-11-12 12:25:51,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:25:51,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:25:51,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:25:51,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:25:51,858 INFO L87 Difference]: Start difference. First operand 4231 states and 4779 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2020-11-12 12:25:51,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:25:51,972 INFO L93 Difference]: Finished difference Result 4990 states and 5421 transitions. [2020-11-12 12:25:51,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 12:25:51,973 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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 59 [2020-11-12 12:25:51,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:25:51,976 INFO L225 Difference]: With dead ends: 4990 [2020-11-12 12:25:51,977 INFO L226 Difference]: Without dead ends: 2250 [2020-11-12 12:25:51,977 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:25:51,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2250 states. [2020-11-12 12:25:52,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2250 to 1836. [2020-11-12 12:25:52,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1836 states, 1647 states have (on average 1.1633272616879173) internal successors, (1916), 1835 states have internal predecessors, (1916), 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) [2020-11-12 12:25:52,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 1916 transitions. [2020-11-12 12:25:52,014 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 1916 transitions. Word has length 59 [2020-11-12 12:25:52,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:25:52,014 INFO L481 AbstractCegarLoop]: Abstraction has 1836 states and 1916 transitions. [2020-11-12 12:25:52,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) [2020-11-12 12:25:52,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 1916 transitions. [2020-11-12 12:25:52,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-12 12:25:52,017 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:25:52,017 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, 1, 1, 1, 1, 1, 1] [2020-11-12 12:25:52,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-12 12:25:52,018 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:25:52,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:25:52,018 INFO L82 PathProgramCache]: Analyzing trace with hash 338752181, now seen corresponding path program 2 times [2020-11-12 12:25:52,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:25:52,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952534149] [2020-11-12 12:25:52,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:25:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:25:52,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:25:52,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952534149] [2020-11-12 12:25:52,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:25:52,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-12 12:25:52,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214866115] [2020-11-12 12:25:52,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-12 12:25:52,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:25:52,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-12 12:25:52,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-12 12:25:52,198 INFO L87 Difference]: Start difference. First operand 1836 states and 1916 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 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) [2020-11-12 12:25:52,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:25:52,347 INFO L93 Difference]: Finished difference Result 468 states and 467 transitions. [2020-11-12 12:25:52,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:25:52,348 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 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 59 [2020-11-12 12:25:52,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:25:52,348 INFO L225 Difference]: With dead ends: 468 [2020-11-12 12:25:52,348 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:25:52,349 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-11-12 12:25:52,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:25:52,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:25:52,350 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) [2020-11-12 12:25:52,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:25:52,350 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2020-11-12 12:25:52,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:25:52,351 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:25:52,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 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) [2020-11-12 12:25:52,351 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:25:52,351 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:25:52,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-12 12:25:52,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:25:52 BasicIcfg [2020-11-12 12:25:52,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:25:52,362 INFO L168 Benchmark]: Toolchain (without parser) took 24613.95 ms. Allocated memory was 302.0 MB in the beginning and 8.0 GB in the end (delta: 7.7 GB). Free memory was 277.1 MB in the beginning and 7.2 GB in the end (delta: -7.0 GB). Peak memory consumption was 774.7 MB. Max. memory is 16.0 GB. [2020-11-12 12:25:52,362 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 302.0 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:25:52,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.20 ms. Allocated memory is still 302.0 MB. Free memory was 276.4 MB in the beginning and 245.4 MB in the end (delta: 31.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2020-11-12 12:25:52,365 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.48 ms. Allocated memory is still 302.0 MB. Free memory was 245.4 MB in the beginning and 243.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:25:52,366 INFO L168 Benchmark]: Boogie Preprocessor took 41.25 ms. Allocated memory is still 302.0 MB. Free memory was 243.2 MB in the beginning and 283.8 MB in the end (delta: -40.6 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.0 GB. [2020-11-12 12:25:52,367 INFO L168 Benchmark]: RCFGBuilder took 703.24 ms. Allocated memory is still 302.0 MB. Free memory was 283.8 MB in the beginning and 259.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:25:52,367 INFO L168 Benchmark]: TraceAbstraction took 23026.99 ms. Allocated memory was 302.0 MB in the beginning and 8.0 GB in the end (delta: 7.7 GB). Free memory was 258.6 MB in the beginning and 7.2 GB in the end (delta: -7.0 GB). Peak memory consumption was 755.7 MB. Max. memory is 16.0 GB. [2020-11-12 12:25:52,372 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 302.0 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 770.20 ms. Allocated memory is still 302.0 MB. Free memory was 276.4 MB in the beginning and 245.4 MB in the end (delta: 31.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 51.48 ms. Allocated memory is still 302.0 MB. Free memory was 245.4 MB in the beginning and 243.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 41.25 ms. Allocated memory is still 302.0 MB. Free memory was 243.2 MB in the beginning and 283.8 MB in the end (delta: -40.6 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.0 GB. * RCFGBuilder took 703.24 ms. Allocated memory is still 302.0 MB. Free memory was 283.8 MB in the beginning and 259.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 23026.99 ms. Allocated memory was 302.0 MB in the beginning and 8.0 GB in the end (delta: 7.7 GB). Free memory was 258.6 MB in the beginning and 7.2 GB in the end (delta: -7.0 GB). Peak memory consumption was 755.7 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 5 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 22.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.9s, HoareTripleCheckerStatistics: 783 SDtfs, 1270 SDslu, 2909 SDs, 0 SdLazy, 320 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=211984occurred 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: 2.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 984 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 545 NumberOfCodeBlocks, 545 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 535 ConstructedInterpolants, 0 QuantifiedInterpolants, 77341 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...