/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/safe016_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 23:49:31,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 23:49:31,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 23:49:31,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 23:49:31,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 23:49:31,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 23:49:31,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 23:49:31,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 23:49:31,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 23:49:31,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 23:49:31,121 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 23:49:31,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 23:49:31,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 23:49:31,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 23:49:31,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 23:49:31,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 23:49:31,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 23:49:31,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 23:49:31,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 23:49:31,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 23:49:31,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 23:49:31,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 23:49:31,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 23:49:31,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 23:49:31,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-17 23:49:31,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 23:49:31,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 23:49:31,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 23:49:31,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 23:49:31,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 23:49:31,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 23:49:31,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 23:49:31,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 23:49:31,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 23:49:31,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 23:49:31,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 23:49:31,185 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 [2020-12-17 23:49:31,246 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 23:49:31,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 23:49:31,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 23:49:31,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 23:49:31,251 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 23:49:31,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 23:49:31,252 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 23:49:31,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 23:49:31,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 23:49:31,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 23:49:31,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 23:49:31,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 23:49:31,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 23:49:31,255 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 23:49:31,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 23:49:31,255 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 23:49:31,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 23:49:31,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 23:49:31,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 23:49:31,256 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 23:49:31,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 23:49:31,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:49:31,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 23:49:31,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 23:49:31,258 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 23:49:31,258 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 23:49:31,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 23:49:31,259 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 23:49:31,259 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 23:49:31,259 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-17 23:49:31,259 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 23:49:31,260 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 23:49:31,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 23:49:31,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 23:49:31,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 23:49:31,673 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 23:49:31,675 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 23:49:31,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2020-12-17 23:49:31,759 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4e90cd26/f97a2be8935c4ce28e0d65b3140ada3c/FLAGf1fb95e13 [2020-12-17 23:49:32,479 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 23:49:32,479 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2020-12-17 23:49:32,508 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4e90cd26/f97a2be8935c4ce28e0d65b3140ada3c/FLAGf1fb95e13 [2020-12-17 23:49:32,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4e90cd26/f97a2be8935c4ce28e0d65b3140ada3c [2020-12-17 23:49:32,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 23:49:32,744 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 23:49:32,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 23:49:32,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 23:49:32,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 23:49:32,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:49:32" (1/1) ... [2020-12-17 23:49:32,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71839d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:32, skipping insertion in model container [2020-12-17 23:49:32,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:49:32" (1/1) ... [2020-12-17 23:49:32,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 23:49:32,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 23:49:33,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:49:33,268 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 23:49:33,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:49:33,433 INFO L208 MainTranslator]: Completed translation [2020-12-17 23:49:33,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:33 WrapperNode [2020-12-17 23:49:33,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 23:49:33,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 23:49:33,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 23:49:33,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 23:49:33,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:33" (1/1) ... [2020-12-17 23:49:33,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:33" (1/1) ... [2020-12-17 23:49:33,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 23:49:33,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 23:49:33,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 23:49:33,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 23:49:33,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:33" (1/1) ... [2020-12-17 23:49:33,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:33" (1/1) ... [2020-12-17 23:49:33,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:33" (1/1) ... [2020-12-17 23:49:33,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:33" (1/1) ... [2020-12-17 23:49:33,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:33" (1/1) ... [2020-12-17 23:49:33,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:33" (1/1) ... [2020-12-17 23:49:33,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:33" (1/1) ... [2020-12-17 23:49:33,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 23:49:33,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 23:49:33,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 23:49:33,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 23:49:33,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:49:33,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 23:49:33,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 23:49:33,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 23:49:33,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 23:49:33,697 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 23:49:33,697 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 23:49:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 23:49:33,698 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 23:49:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-17 23:49:33,698 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-17 23:49:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-12-17 23:49:33,698 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-12-17 23:49:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 23:49:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 23:49:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 23:49:33,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 23:49:33,701 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 23:49:34,305 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 23:49:34,306 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 23:49:34,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:49:34 BoogieIcfgContainer [2020-12-17 23:49:34,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 23:49:34,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 23:49:34,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 23:49:34,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 23:49:34,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:49:32" (1/3) ... [2020-12-17 23:49:34,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2adbbffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:49:34, skipping insertion in model container [2020-12-17 23:49:34,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:49:33" (2/3) ... [2020-12-17 23:49:34,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2adbbffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:49:34, skipping insertion in model container [2020-12-17 23:49:34,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:49:34" (3/3) ... [2020-12-17 23:49:34,321 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_tso.oepc.i [2020-12-17 23:49:34,340 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 23:49:34,340 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 23:49:34,344 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 23:49:34,345 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 23:49:34,396 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,396 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,396 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,397 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,397 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,397 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,397 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,398 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,398 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,398 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,403 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,404 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,405 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,405 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,405 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,405 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,405 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,406 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,406 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,406 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,407 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,407 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,408 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,408 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,410 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,410 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,410 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,410 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,411 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,411 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,411 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,412 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,413 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,413 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,413 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,414 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,415 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,415 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,416 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,416 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,416 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,416 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,416 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,416 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,417 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,417 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,417 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,417 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,421 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,421 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,422 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,422 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,430 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,430 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,430 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,430 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,437 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,438 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,438 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,439 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,443 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,444 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,444 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,444 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:49:34,447 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 23:49:34,462 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-17 23:49:34,502 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 23:49:34,502 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 23:49:34,502 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 23:49:34,502 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 23:49:34,503 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 23:49:34,503 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 23:49:34,503 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 23:49:34,503 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 23:49:34,523 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 89 transitions, 198 flow [2020-12-17 23:49:44,190 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:49:44,385 INFO L276 IsEmpty]: Start isEmpty. Operand has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:49:44,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-17 23:49:44,484 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:49:44,486 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] [2020-12-17 23:49:44,486 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:49:44,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:49:44,494 INFO L82 PathProgramCache]: Analyzing trace with hash -864945227, now seen corresponding path program 1 times [2020-12-17 23:49:44,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:49:44,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808521130] [2020-12-17 23:49:44,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:49:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:49:45,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:49:45,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808521130] [2020-12-17 23:49:45,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:49:45,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:49:45,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664470511] [2020-12-17 23:49:45,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:49:45,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:49:45,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:49:45,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:49:45,118 INFO L87 Difference]: Start difference. First operand has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 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 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:49:46,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:49:46,877 INFO L93 Difference]: Finished difference Result 73967 states and 317811 transitions. [2020-12-17 23:49:46,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:49:46,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2020-12-17 23:49:46,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:49:46,889 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:49:46,889 INFO L78 Accepts]: Start accepts. Automaton has 73967 states and 317811 transitions. Word has length 45 [2020-12-17 23:49:46,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:49:46,891 INFO L481 AbstractCegarLoop]: Abstraction has 73967 states and 317811 transitions. [2020-12-17 23:49:46,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:49:46,892 INFO L276 IsEmpty]: Start isEmpty. Operand 73967 states and 317811 transitions. [2020-12-17 23:49:47,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-17 23:49:47,280 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:49:47,283 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] [2020-12-17 23:49:47,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 23:49:47,284 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:49:47,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:49:47,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1139015446, now seen corresponding path program 1 times [2020-12-17 23:49:47,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:49:47,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374854709] [2020-12-17 23:49:47,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:49:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:49:47,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:49:47,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374854709] [2020-12-17 23:49:47,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:49:47,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:49:47,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712082708] [2020-12-17 23:49:47,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:49:47,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:49:47,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:49:47,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:49:47,507 INFO L87 Difference]: Start difference. First operand 73967 states and 317811 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:49:49,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:49:49,323 INFO L93 Difference]: Finished difference Result 109679 states and 468735 transitions. [2020-12-17 23:49:49,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:49:49,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2020-12-17 23:49:49,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:49:49,330 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:49:49,330 INFO L78 Accepts]: Start accepts. Automaton has 109679 states and 468735 transitions. Word has length 47 [2020-12-17 23:49:49,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:49:49,331 INFO L481 AbstractCegarLoop]: Abstraction has 109679 states and 468735 transitions. [2020-12-17 23:49:49,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:49:49,331 INFO L276 IsEmpty]: Start isEmpty. Operand 109679 states and 468735 transitions. [2020-12-17 23:49:49,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-17 23:49:49,476 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:49:49,476 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] [2020-12-17 23:49:49,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 23:49:49,476 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:49:49,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:49:49,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1367050025, now seen corresponding path program 1 times [2020-12-17 23:49:49,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:49:49,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453255659] [2020-12-17 23:49:49,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:49:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:49:49,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:49:49,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453255659] [2020-12-17 23:49:49,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:49:49,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:49:49,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916258934] [2020-12-17 23:49:49,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:49:49,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:49:49,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:49:49,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:49:49,701 INFO L87 Difference]: Start difference. First operand 109679 states and 468735 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:49:52,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:49:52,251 INFO L93 Difference]: Finished difference Result 179279 states and 761719 transitions. [2020-12-17 23:49:52,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:49:52,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2020-12-17 23:49:52,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:49:52,259 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:49:52,259 INFO L78 Accepts]: Start accepts. Automaton has 179279 states and 761719 transitions. Word has length 49 [2020-12-17 23:49:52,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:49:52,259 INFO L481 AbstractCegarLoop]: Abstraction has 179279 states and 761719 transitions. [2020-12-17 23:49:52,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:49:52,260 INFO L276 IsEmpty]: Start isEmpty. Operand 179279 states and 761719 transitions. [2020-12-17 23:49:52,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-17 23:49:52,424 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:49:52,425 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] [2020-12-17 23:49:52,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 23:49:52,426 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:49:52,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:49:52,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1400237191, now seen corresponding path program 1 times [2020-12-17 23:49:52,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:49:52,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701161135] [2020-12-17 23:49:52,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:49:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:49:52,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:49:52,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701161135] [2020-12-17 23:49:52,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:49:52,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:49:52,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002410718] [2020-12-17 23:49:52,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:49:52,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:49:52,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:49:52,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:49:52,733 INFO L87 Difference]: Start difference. First operand 179279 states and 761719 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:49:56,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:49:56,347 INFO L93 Difference]: Finished difference Result 280783 states and 1185655 transitions. [2020-12-17 23:49:56,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:49:56,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2020-12-17 23:49:56,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:49:56,349 INFO L763 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 [2020-12-17 23:49:56,350 INFO L78 Accepts]: Start accepts. Automaton has 280783 states and 1185655 transitions. Word has length 50 [2020-12-17 23:49:56,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:49:56,350 INFO L481 AbstractCegarLoop]: Abstraction has 280783 states and 1185655 transitions. [2020-12-17 23:49:56,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:49:56,350 INFO L276 IsEmpty]: Start isEmpty. Operand 280783 states and 1185655 transitions. [2020-12-17 23:49:56,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-17 23:49:56,533 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:49:56,533 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] [2020-12-17 23:49:56,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 23:49:56,534 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:49:56,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:49:56,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1483394242, now seen corresponding path program 1 times [2020-12-17 23:49:56,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:49:56,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369733090] [2020-12-17 23:49:56,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:49:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:49:56,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:49:56,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369733090] [2020-12-17 23:49:56,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:49:56,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:49:56,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636402153] [2020-12-17 23:49:56,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:49:56,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:49:56,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:49:56,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:49:56,694 INFO L87 Difference]: Start difference. First operand 280783 states and 1185655 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) [2020-12-17 23:50:01,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:50:01,792 INFO L93 Difference]: Finished difference Result 450895 states and 1879799 transitions. [2020-12-17 23:50:01,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:50:01,793 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 [2020-12-17 23:50:01,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:50:01,794 INFO L763 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 [2020-12-17 23:50:01,794 INFO L78 Accepts]: Start accepts. Automaton has 450895 states and 1879799 transitions. Word has length 51 [2020-12-17 23:50:01,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:50:01,794 INFO L481 AbstractCegarLoop]: Abstraction has 450895 states and 1879799 transitions. [2020-12-17 23:50:01,794 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) [2020-12-17 23:50:01,795 INFO L276 IsEmpty]: Start isEmpty. Operand 450895 states and 1879799 transitions. [2020-12-17 23:50:02,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-17 23:50:02,091 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:50:02,091 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] [2020-12-17 23:50:02,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-17 23:50:02,092 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:50:02,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:50:02,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1931015558, now seen corresponding path program 1 times [2020-12-17 23:50:02,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:50:02,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161151303] [2020-12-17 23:50:02,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:50:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:50:02,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:50:02,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161151303] [2020-12-17 23:50:02,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:50:02,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:50:02,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440327508] [2020-12-17 23:50:02,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:50:02,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:50:02,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:50:02,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:50:02,348 INFO L87 Difference]: Start difference. First operand 450895 states and 1879799 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:50:10,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:50:10,792 INFO L93 Difference]: Finished difference Result 637167 states and 2647919 transitions. [2020-12-17 23:50:10,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:50:10,793 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2020-12-17 23:50:10,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:50:10,796 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:50:10,797 INFO L78 Accepts]: Start accepts. Automaton has 637167 states and 2647919 transitions. Word has length 52 [2020-12-17 23:50:10,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:50:10,799 INFO L481 AbstractCegarLoop]: Abstraction has 637167 states and 2647919 transitions. [2020-12-17 23:50:10,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:50:10,799 INFO L276 IsEmpty]: Start isEmpty. Operand 637167 states and 2647919 transitions. [2020-12-17 23:50:11,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-17 23:50:11,386 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:50:11,386 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] [2020-12-17 23:50:11,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-17 23:50:11,386 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:50:11,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:50:11,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1173913022, now seen corresponding path program 2 times [2020-12-17 23:50:11,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:50:11,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813277375] [2020-12-17 23:50:11,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:50:11,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:50:11,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:50:11,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813277375] [2020-12-17 23:50:11,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:50:11,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:50:11,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163434] [2020-12-17 23:50:11,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:50:11,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:50:11,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:50:11,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:50:11,592 INFO L87 Difference]: Start difference. First operand 637167 states and 2647919 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:50:22,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:50:22,451 INFO L93 Difference]: Finished difference Result 904767 states and 3746939 transitions. [2020-12-17 23:50:22,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:50:22,452 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2020-12-17 23:50:22,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:50:22,453 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:50:22,453 INFO L78 Accepts]: Start accepts. Automaton has 904767 states and 3746939 transitions. Word has length 52 [2020-12-17 23:50:22,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:50:22,453 INFO L481 AbstractCegarLoop]: Abstraction has 904767 states and 3746939 transitions. [2020-12-17 23:50:22,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:50:22,454 INFO L276 IsEmpty]: Start isEmpty. Operand 904767 states and 3746939 transitions. [2020-12-17 23:50:23,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-17 23:50:23,007 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:50:23,007 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] [2020-12-17 23:50:23,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-17 23:50:23,008 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:50:23,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:50:23,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1029243980, now seen corresponding path program 3 times [2020-12-17 23:50:23,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:50:23,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173425942] [2020-12-17 23:50:23,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:50:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:50:24,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:50:24,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173425942] [2020-12-17 23:50:24,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:50:24,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:50:24,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538930234] [2020-12-17 23:50:24,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:50:24,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:50:24,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:50:24,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:50:24,245 INFO L87 Difference]: Start difference. First operand 904767 states and 3746939 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:50:47,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:50:47,640 INFO L93 Difference]: Finished difference Result 1714047 states and 6992059 transitions. [2020-12-17 23:50:47,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-17 23:50:47,641 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2020-12-17 23:50:47,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:50:47,642 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-12-17 23:50:47,642 INFO L78 Accepts]: Start accepts. Automaton has 1714047 states and 6992059 transitions. Word has length 52 [2020-12-17 23:50:47,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:50:47,643 INFO L481 AbstractCegarLoop]: Abstraction has 1714047 states and 6992059 transitions. [2020-12-17 23:50:47,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:50:47,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1714047 states and 6992059 transitions. [2020-12-17 23:50:48,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-17 23:50:48,832 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:50:48,833 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] [2020-12-17 23:50:48,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-17 23:50:48,833 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:50:48,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:50:48,834 INFO L82 PathProgramCache]: Analyzing trace with hash -613264223, now seen corresponding path program 1 times [2020-12-17 23:50:48,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:50:48,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102544566] [2020-12-17 23:50:48,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:50:48,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:50:49,423 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2020-12-17 23:50:49,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:50:49,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102544566] [2020-12-17 23:50:49,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:50:49,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:50:49,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058981332] [2020-12-17 23:50:49,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:50:49,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:50:49,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:50:49,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:50:49,493 INFO L87 Difference]: Start difference. First operand 1714047 states and 6992059 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:51:09,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:51:09,164 INFO L93 Difference]: Finished difference Result 1224377 states and 4923227 transitions. [2020-12-17 23:51:09,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-17 23:51:09,170 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2020-12-17 23:51:09,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:51:09,172 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:51:09,172 INFO L78 Accepts]: Start accepts. Automaton has 1224377 states and 4923227 transitions. Word has length 53 [2020-12-17 23:51:09,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:51:09,172 INFO L481 AbstractCegarLoop]: Abstraction has 1224377 states and 4923227 transitions. [2020-12-17 23:51:09,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:51:09,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1224377 states and 4923227 transitions. [2020-12-17 23:51:10,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-17 23:51:10,583 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:51:10,586 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] [2020-12-17 23:51:10,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-17 23:51:10,587 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:51:10,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:51:10,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1217531091, now seen corresponding path program 1 times [2020-12-17 23:51:10,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:51:10,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082826409] [2020-12-17 23:51:10,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:51:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:51:11,356 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 5 [2020-12-17 23:51:11,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:51:11,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082826409] [2020-12-17 23:51:11,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:51:11,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:51:11,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731780525] [2020-12-17 23:51:11,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:51:11,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:51:11,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:51:11,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:51:11,370 INFO L87 Difference]: Start difference. First operand 1224377 states and 4923227 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)