/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-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:17:48,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:17:48,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:17:48,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:17:48,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:17:48,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:17:48,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:17:48,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:17:48,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:17:48,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:17:48,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:17:48,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:17:48,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:17:48,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:17:48,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:17:48,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:17:48,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:17:48,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:17:48,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:17:48,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:17:48,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:17:48,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:17:48,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:17:48,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:17:48,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 21:17:48,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:17:48,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:17:48,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:17:48,666 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:17:48,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:17:48,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:17:48,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:17:48,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:17:48,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:17:48,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:17:48,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:17:48,671 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-keepdead.epf [2021-01-20 21:17:48,724 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:17:48,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:17:48,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:17:48,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:17:48,730 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:17:48,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:17:48,730 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:17:48,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:17:48,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:17:48,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:17:48,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:17:48,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:17:48,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:17:48,733 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:17:48,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:17:48,734 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:17:48,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:17:48,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:17:48,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:17:48,735 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:17:48,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:17:48,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:17:48,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:17:48,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:17:48,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:17:48,736 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:17:48,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:17:48,737 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:17:48,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:17:48,737 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:17:48,737 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:17:48,737 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:17:49,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:17:49,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:17:49,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:17:49,197 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:17:49,198 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:17:49,199 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2021-01-20 21:17:49,289 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93dafb238/bd7d6a15d96244c99fe02057baea6267/FLAGaa487b9a4 [2021-01-20 21:17:50,005 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:17:50,005 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2021-01-20 21:17:50,024 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93dafb238/bd7d6a15d96244c99fe02057baea6267/FLAGaa487b9a4 [2021-01-20 21:17:50,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93dafb238/bd7d6a15d96244c99fe02057baea6267 [2021-01-20 21:17:50,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:17:50,316 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:17:50,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:17:50,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:17:50,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:17:50,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:17:50" (1/1) ... [2021-01-20 21:17:50,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f56d7c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:50, skipping insertion in model container [2021-01-20 21:17:50,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:17:50" (1/1) ... [2021-01-20 21:17:50,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:17:50,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:17:50,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:17:50,952 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:17:50,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:17:51,110 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:17:51,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:51 WrapperNode [2021-01-20 21:17:51,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:17:51,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:17:51,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:17:51,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:17:51,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:51" (1/1) ... [2021-01-20 21:17:51,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:51" (1/1) ... [2021-01-20 21:17:51,176 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:17:51,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:17:51,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:17:51,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:17:51,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:51" (1/1) ... [2021-01-20 21:17:51,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:51" (1/1) ... [2021-01-20 21:17:51,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:51" (1/1) ... [2021-01-20 21:17:51,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:51" (1/1) ... [2021-01-20 21:17:51,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:51" (1/1) ... [2021-01-20 21:17:51,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:51" (1/1) ... [2021-01-20 21:17:51,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:51" (1/1) ... [2021-01-20 21:17:51,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:17:51,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:17:51,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:17:51,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:17:51,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:17:51,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:17:51,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:17:51,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:17:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:17:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:17:51,367 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:17:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:17:51,368 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:17:51,368 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 21:17:51,369 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 21:17:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-01-20 21:17:51,369 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-01-20 21:17:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:17:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:17:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:17:51,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:17:51,372 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 21:17:52,060 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:17:52,060 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 21:17:52,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:17:52 BoogieIcfgContainer [2021-01-20 21:17:52,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:17:52,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:17:52,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:17:52,068 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:17:52,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:17:50" (1/3) ... [2021-01-20 21:17:52,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732d5afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:17:52, skipping insertion in model container [2021-01-20 21:17:52,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:51" (2/3) ... [2021-01-20 21:17:52,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732d5afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:17:52, skipping insertion in model container [2021-01-20 21:17:52,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:17:52" (3/3) ... [2021-01-20 21:17:52,071 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc.i [2021-01-20 21:17:52,087 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:17:52,087 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:17:52,091 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 21:17:52,092 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:17:52,130 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,130 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,131 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,131 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,131 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,131 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,132 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,132 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,132 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,133 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,133 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,133 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,134 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,134 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,134 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,134 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,134 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,135 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,135 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,135 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,135 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,135 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,136 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,136 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,136 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,137 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,137 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,137 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,137 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,137 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,138 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,138 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,139 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,139 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,139 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,139 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,140 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,140 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,140 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,140 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,141 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,141 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,141 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,141 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,142 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,142 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,142 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,142 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,144 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,145 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,145 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,145 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,152 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,152 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,153 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,153 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,156 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,156 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,156 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,156 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,161 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,161 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,161 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,161 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:52,164 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:17:52,177 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-01-20 21:17:52,201 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:17:52,201 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:17:52,201 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:17:52,201 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:17:52,201 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:17:52,201 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:17:52,202 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:17:52,202 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:17:52,214 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 90 transitions, 200 flow [2021-01-20 21:18:02,085 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54312 states, 54310 states have (on average 4.420254096851409) internal successors, (240064), 54311 states have internal predecessors, (240064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:18:02,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 54312 states, 54310 states have (on average 4.420254096851409) internal successors, (240064), 54311 states have internal predecessors, (240064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:18:02,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-01-20 21:18:02,517 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:18:02,518 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:18:02,518 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:18:02,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:18:02,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1521340881, now seen corresponding path program 1 times [2021-01-20 21:18:02,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:18:02,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691522309] [2021-01-20 21:18:02,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:18:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:18:03,074 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2021-01-20 21:18:03,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:18:03,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691522309] [2021-01-20 21:18:03,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:18:03,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:18:03,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538436040] [2021-01-20 21:18:03,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:18:03,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:18:03,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:18:03,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:18:03,254 INFO L87 Difference]: Start difference. First operand has 54312 states, 54310 states have (on average 4.420254096851409) internal successors, (240064), 54311 states have internal predecessors, (240064), 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 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:18:05,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:18:05,112 INFO L93 Difference]: Finished difference Result 68928 states and 296104 transitions. [2021-01-20 21:18:05,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:18:05,114 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-01-20 21:18:05,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:18:05,116 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:18:05,117 INFO L78 Accepts]: Start accepts. Automaton has 68928 states and 296104 transitions. Word has length 46 [2021-01-20 21:18:05,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:18:05,118 INFO L481 AbstractCegarLoop]: Abstraction has 68928 states and 296104 transitions. [2021-01-20 21:18:05,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:18:05,119 INFO L276 IsEmpty]: Start isEmpty. Operand 68928 states and 296104 transitions. [2021-01-20 21:18:05,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-20 21:18:05,477 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:18:05,477 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:18:05,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:18:05,478 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:18:05,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:18:05,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1443855120, now seen corresponding path program 1 times [2021-01-20 21:18:05,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:18:05,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897551286] [2021-01-20 21:18:05,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:18:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:18:05,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:18:05,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897551286] [2021-01-20 21:18:05,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:18:05,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:18:05,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179472632] [2021-01-20 21:18:05,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:18:05,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:18:05,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:18:05,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:18:05,777 INFO L87 Difference]: Start difference. First operand 68928 states and 296104 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:18:07,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:18:07,626 INFO L93 Difference]: Finished difference Result 106224 states and 453904 transitions. [2021-01-20 21:18:07,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:18:07,631 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-01-20 21:18:07,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:18:07,632 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:18:07,632 INFO L78 Accepts]: Start accepts. Automaton has 106224 states and 453904 transitions. Word has length 48 [2021-01-20 21:18:07,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:18:07,633 INFO L481 AbstractCegarLoop]: Abstraction has 106224 states and 453904 transitions. [2021-01-20 21:18:07,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:18:07,633 INFO L276 IsEmpty]: Start isEmpty. Operand 106224 states and 453904 transitions. [2021-01-20 21:18:07,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-20 21:18:07,729 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:18:07,729 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:18:07,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:18:07,730 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:18:07,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:18:07,732 INFO L82 PathProgramCache]: Analyzing trace with hash 783013961, now seen corresponding path program 1 times [2021-01-20 21:18:07,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:18:07,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584406770] [2021-01-20 21:18:07,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:18:07,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:18:07,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:18:07,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584406770] [2021-01-20 21:18:07,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:18:07,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:18:07,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028901162] [2021-01-20 21:18:07,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:18:07,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:18:07,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:18:07,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:18:07,908 INFO L87 Difference]: Start difference. First operand 106224 states and 453904 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:18:10,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:18:10,255 INFO L93 Difference]: Finished difference Result 160320 states and 678380 transitions. [2021-01-20 21:18:10,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:18:10,256 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-01-20 21:18:10,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:18:10,257 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:18:10,258 INFO L78 Accepts]: Start accepts. Automaton has 160320 states and 678380 transitions. Word has length 49 [2021-01-20 21:18:10,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:18:10,258 INFO L481 AbstractCegarLoop]: Abstraction has 160320 states and 678380 transitions. [2021-01-20 21:18:10,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:18:10,259 INFO L276 IsEmpty]: Start isEmpty. Operand 160320 states and 678380 transitions. [2021-01-20 21:18:10,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 21:18:10,526 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:18:10,526 INFO L504 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] [2021-01-20 21:18:10,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:18:10,527 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:18:10,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:18:10,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1975787338, now seen corresponding path program 1 times [2021-01-20 21:18:10,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:18:10,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935308564] [2021-01-20 21:18:10,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:18:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:18:10,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:18:10,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935308564] [2021-01-20 21:18:10,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:18:10,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:18:10,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971310044] [2021-01-20 21:18:10,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:18:10,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:18:10,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:18:10,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:18:10,726 INFO L87 Difference]: Start difference. First operand 160320 states and 678380 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2021-01-20 21:18:13,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:18:13,899 INFO L93 Difference]: Finished difference Result 255424 states and 1074876 transitions. [2021-01-20 21:18:13,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:18:13,900 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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 [2021-01-20 21:18:13,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:18:13,901 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:18:13,901 INFO L78 Accepts]: Start accepts. Automaton has 255424 states and 1074876 transitions. Word has length 51 [2021-01-20 21:18:13,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:18:13,901 INFO L481 AbstractCegarLoop]: Abstraction has 255424 states and 1074876 transitions. [2021-01-20 21:18:13,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2021-01-20 21:18:13,902 INFO L276 IsEmpty]: Start isEmpty. Operand 255424 states and 1074876 transitions. [2021-01-20 21:18:14,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 21:18:14,167 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:18:14,167 INFO L504 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] [2021-01-20 21:18:14,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:18:14,168 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:18:14,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:18:14,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1598789847, now seen corresponding path program 1 times [2021-01-20 21:18:14,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:18:14,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524912621] [2021-01-20 21:18:14,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:18:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:18:14,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:18:14,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524912621] [2021-01-20 21:18:14,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:18:14,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:18:14,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585190917] [2021-01-20 21:18:14,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:18:14,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:18:14,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:18:14,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:18:14,372 INFO L87 Difference]: Start difference. First operand 255424 states and 1074876 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:18:18,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:18:18,893 INFO L93 Difference]: Finished difference Result 418624 states and 1739836 transitions. [2021-01-20 21:18:18,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:18:18,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-01-20 21:18:18,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:18:18,903 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:18:18,903 INFO L78 Accepts]: Start accepts. Automaton has 418624 states and 1739836 transitions. Word has length 53 [2021-01-20 21:18:18,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:18:18,903 INFO L481 AbstractCegarLoop]: Abstraction has 418624 states and 1739836 transitions. [2021-01-20 21:18:18,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:18:18,904 INFO L276 IsEmpty]: Start isEmpty. Operand 418624 states and 1739836 transitions. [2021-01-20 21:18:19,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 21:18:19,926 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:18:19,926 INFO L504 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] [2021-01-20 21:18:19,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:18:19,927 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:18:19,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:18:19,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1207661705, now seen corresponding path program 1 times [2021-01-20 21:18:19,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:18:19,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151834558] [2021-01-20 21:18:19,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:18:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:18:20,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:18:20,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151834558] [2021-01-20 21:18:20,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:18:20,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:18:20,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719706569] [2021-01-20 21:18:20,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:18:20,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:18:20,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:18:20,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:18:20,265 INFO L87 Difference]: Start difference. First operand 418624 states and 1739836 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:18:27,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:18:27,672 INFO L93 Difference]: Finished difference Result 593824 states and 2459796 transitions. [2021-01-20 21:18:27,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:18:27,673 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2021-01-20 21:18:27,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:18:27,676 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:18:27,676 INFO L78 Accepts]: Start accepts. Automaton has 593824 states and 2459796 transitions. Word has length 54 [2021-01-20 21:18:27,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:18:27,678 INFO L481 AbstractCegarLoop]: Abstraction has 593824 states and 2459796 transitions. [2021-01-20 21:18:27,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:18:27,678 INFO L276 IsEmpty]: Start isEmpty. Operand 593824 states and 2459796 transitions. [2021-01-20 21:18:28,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 21:18:28,142 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:18:28,142 INFO L504 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] [2021-01-20 21:18:28,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 21:18:28,142 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:18:28,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:18:28,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1887275789, now seen corresponding path program 2 times [2021-01-20 21:18:28,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:18:28,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737939019] [2021-01-20 21:18:28,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:18:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:18:28,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:18:28,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737939019] [2021-01-20 21:18:28,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:18:28,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:18:28,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762285680] [2021-01-20 21:18:28,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:18:28,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:18:28,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:18:28,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:18:28,341 INFO L87 Difference]: Start difference. First operand 593824 states and 2459796 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:18:34,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:18:34,468 INFO L93 Difference]: Finished difference Result 488124 states and 1990433 transitions. [2021-01-20 21:18:34,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 21:18:34,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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 54 [2021-01-20 21:18:34,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:18:34,469 INFO L769 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 [2021-01-20 21:18:34,469 INFO L78 Accepts]: Start accepts. Automaton has 488124 states and 1990433 transitions. Word has length 54 [2021-01-20 21:18:34,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:18:34,470 INFO L481 AbstractCegarLoop]: Abstraction has 488124 states and 1990433 transitions. [2021-01-20 21:18:34,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:18:34,471 INFO L276 IsEmpty]: Start isEmpty. Operand 488124 states and 1990433 transitions. [2021-01-20 21:18:35,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-20 21:18:35,038 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:18:35,038 INFO L504 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] [2021-01-20 21:18:35,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 21:18:35,039 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:18:35,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:18:35,041 INFO L82 PathProgramCache]: Analyzing trace with hash 741333027, now seen corresponding path program 1 times [2021-01-20 21:18:35,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:18:35,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704193801] [2021-01-20 21:18:35,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:18:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:18:35,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:18:35,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704193801] [2021-01-20 21:18:35,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:18:35,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:18:35,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447962604] [2021-01-20 21:18:35,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:18:35,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:18:35,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:18:35,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:18:35,266 INFO L87 Difference]: Start difference. First operand 488124 states and 1990433 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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) [2021-01-20 21:18:39,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:18:39,267 INFO L93 Difference]: Finished difference Result 306444 states and 1223749 transitions. [2021-01-20 21:18:39,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:18:39,268 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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 [2021-01-20 21:18:39,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:18:39,269 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:18:39,269 INFO L78 Accepts]: Start accepts. Automaton has 306444 states and 1223749 transitions. Word has length 55 [2021-01-20 21:18:39,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:18:39,269 INFO L481 AbstractCegarLoop]: Abstraction has 306444 states and 1223749 transitions. [2021-01-20 21:18:39,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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) [2021-01-20 21:18:39,269 INFO L276 IsEmpty]: Start isEmpty. Operand 306444 states and 1223749 transitions. [2021-01-20 21:18:39,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-01-20 21:18:39,771 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:18:39,771 INFO L504 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] [2021-01-20 21:18:39,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 21:18:39,772 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:18:39,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:18:39,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1669139404, now seen corresponding path program 1 times [2021-01-20 21:18:39,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:18:39,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547436671] [2021-01-20 21:18:39,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:18:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:18:39,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:18:39,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547436671] [2021-01-20 21:18:39,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:18:39,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 21:18:39,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343106471] [2021-01-20 21:18:39,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 21:18:39,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:18:39,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 21:18:39,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 21:18:39,932 INFO L87 Difference]: Start difference. First operand 306444 states and 1223749 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 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) [2021-01-20 21:18:42,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:18:42,340 INFO L93 Difference]: Finished difference Result 184692 states and 724426 transitions. [2021-01-20 21:18:42,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-20 21:18:42,341 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 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 [2021-01-20 21:18:42,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:18:42,342 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-01-20 21:18:42,342 INFO L78 Accepts]: Start accepts. Automaton has 184692 states and 724426 transitions. Word has length 56 [2021-01-20 21:18:42,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:18:42,342 INFO L481 AbstractCegarLoop]: Abstraction has 184692 states and 724426 transitions. [2021-01-20 21:18:42,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 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) [2021-01-20 21:18:42,342 INFO L276 IsEmpty]: Start isEmpty. Operand 184692 states and 724426 transitions. [2021-01-20 21:18:43,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-01-20 21:18:43,569 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:18:43,569 INFO L504 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] [2021-01-20 21:18:43,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-20 21:18:43,570 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:18:43,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:18:43,570 INFO L82 PathProgramCache]: Analyzing trace with hash -10705787, now seen corresponding path program 1 times [2021-01-20 21:18:43,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:18:43,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570949630] [2021-01-20 21:18:43,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:18:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:18:43,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:18:43,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570949630] [2021-01-20 21:18:43,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:18:43,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:18:43,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974195004] [2021-01-20 21:18:43,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:18:43,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:18:43,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:18:43,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:18:43,909 INFO L87 Difference]: Start difference. First operand 184692 states and 724426 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:18:46,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:18:46,413 INFO L93 Difference]: Finished difference Result 232396 states and 909350 transitions. [2021-01-20 21:18:46,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-01-20 21:18:46,415 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 58 [2021-01-20 21:18:46,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:18:46,415 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-01-20 21:18:46,416 INFO L78 Accepts]: Start accepts. Automaton has 232396 states and 909350 transitions. Word has length 58 [2021-01-20 21:18:46,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:18:46,416 INFO L481 AbstractCegarLoop]: Abstraction has 232396 states and 909350 transitions. [2021-01-20 21:18:46,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:18:46,416 INFO L276 IsEmpty]: Start isEmpty. Operand 232396 states and 909350 transitions. [2021-01-20 21:18:46,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-01-20 21:18:46,870 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:18:46,870 INFO L504 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] [2021-01-20 21:18:46,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-20 21:18:46,870 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:18:46,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:18:46,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1226318091, now seen corresponding path program 2 times [2021-01-20 21:18:46,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:18:46,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17781316] [2021-01-20 21:18:46,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:18:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:18:47,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:18:47,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17781316] [2021-01-20 21:18:47,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:18:47,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-20 21:18:47,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816083901] [2021-01-20 21:18:47,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-20 21:18:47,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:18:47,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-20 21:18:47,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-20 21:18:47,044 INFO L87 Difference]: Start difference. First operand 232396 states and 909350 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:18:50,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:18:50,014 INFO L93 Difference]: Finished difference Result 165328 states and 646316 transitions. [2021-01-20 21:18:50,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-01-20 21:18:50,014 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 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 58 [2021-01-20 21:18:50,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:18:50,015 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2021-01-20 21:18:50,016 INFO L78 Accepts]: Start accepts. Automaton has 165328 states and 646316 transitions. Word has length 58 [2021-01-20 21:18:50,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:18:50,016 INFO L481 AbstractCegarLoop]: Abstraction has 165328 states and 646316 transitions. [2021-01-20 21:18:50,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:18:50,016 INFO L276 IsEmpty]: Start isEmpty. Operand 165328 states and 646316 transitions. [2021-01-20 21:18:50,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-01-20 21:18:50,659 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:18:50,659 INFO L504 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, 1] [2021-01-20 21:18:50,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-20 21:18:50,660 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:18:50,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:18:50,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1195573236, now seen corresponding path program 1 times [2021-01-20 21:18:50,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:18:50,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479527622] [2021-01-20 21:18:50,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:18:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:18:50,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:18:50,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479527622] [2021-01-20 21:18:50,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:18:50,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:18:50,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700084212] [2021-01-20 21:18:50,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:18:50,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:18:50,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:18:50,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:18:50,992 INFO L87 Difference]: Start difference. First operand 165328 states and 646316 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:18:53,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:18:53,646 INFO L93 Difference]: Finished difference Result 247381 states and 958473 transitions. [2021-01-20 21:18:53,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:18:53,647 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 60 [2021-01-20 21:18:53,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:18:53,647 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:18:53,647 INFO L78 Accepts]: Start accepts. Automaton has 247381 states and 958473 transitions. Word has length 60 [2021-01-20 21:18:53,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:18:53,648 INFO L481 AbstractCegarLoop]: Abstraction has 247381 states and 958473 transitions. [2021-01-20 21:18:53,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:18:53,648 INFO L276 IsEmpty]: Start isEmpty. Operand 247381 states and 958473 transitions. [2021-01-20 21:18:55,591 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:18:55,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-20 21:18:55,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:18:55 BasicIcfg [2021-01-20 21:18:55,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:18:55,621 INFO L168 Benchmark]: Toolchain (without parser) took 65302.86 ms. Allocated memory was 302.0 MB in the beginning and 15.4 GB in the end (delta: 15.1 GB). Free memory was 276.7 MB in the beginning and 7.3 GB in the end (delta: -7.0 GB). Peak memory consumption was 8.6 GB. Max. memory is 16.0 GB. [2021-01-20 21:18:55,623 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory was 271.8 MB in the beginning and 271.6 MB in the end (delta: 153.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:18:55,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 787.42 ms. Allocated memory is still 302.0 MB. Free memory was 276.5 MB in the beginning and 245.3 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-01-20 21:18:55,625 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.04 ms. Allocated memory is still 302.0 MB. Free memory was 245.3 MB in the beginning and 243.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:18:55,628 INFO L168 Benchmark]: Boogie Preprocessor took 58.59 ms. Allocated memory is still 302.0 MB. Free memory was 243.3 MB in the beginning and 284.6 MB in the end (delta: -41.2 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.0 GB. [2021-01-20 21:18:55,629 INFO L168 Benchmark]: RCFGBuilder took 825.43 ms. Allocated memory is still 302.0 MB. Free memory was 284.6 MB in the beginning and 260.4 MB in the end (delta: 24.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-01-20 21:18:55,630 INFO L168 Benchmark]: TraceAbstraction took 63552.28 ms. Allocated memory was 302.0 MB in the beginning and 15.4 GB in the end (delta: 15.1 GB). Free memory was 259.3 MB in the beginning and 7.3 GB in the end (delta: -7.0 GB). Peak memory consumption was 8.6 GB. Max. memory is 16.0 GB. [2021-01-20 21:18:55,640 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory was 271.8 MB in the beginning and 271.6 MB in the end (delta: 153.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 787.42 ms. Allocated memory is still 302.0 MB. Free memory was 276.5 MB in the beginning and 245.3 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 64.04 ms. Allocated memory is still 302.0 MB. Free memory was 245.3 MB in the beginning and 243.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 58.59 ms. Allocated memory is still 302.0 MB. Free memory was 243.3 MB in the beginning and 284.6 MB in the end (delta: -41.2 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.0 GB. * RCFGBuilder took 825.43 ms. Allocated memory is still 302.0 MB. Free memory was 284.6 MB in the beginning and 260.4 MB in the end (delta: 24.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 63552.28 ms. Allocated memory was 302.0 MB in the beginning and 15.4 GB in the end (delta: 15.1 GB). Free memory was 259.3 MB in the beginning and 7.3 GB in the end (delta: -7.0 GB). Peak memory consumption was 8.6 GB. 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, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 63.3s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 41.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.8s, HoareTripleCheckerStatistics: 1775 SDtfs, 3646 SDslu, 6212 SDs, 0 SdLazy, 657 SolverSat, 179 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 190 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=593824occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 642 NumberOfCodeBlocks, 642 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 630 ConstructedInterpolants, 0 QuantifiedInterpolants, 88702 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...