/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-Delay.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 06:14:51,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 06:14:51,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 06:14:51,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 06:14:51,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 06:14:51,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 06:14:51,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 06:14:51,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 06:14:51,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 06:14:51,316 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 06:14:51,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 06:14:51,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 06:14:51,320 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 06:14:51,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 06:14:51,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 06:14:51,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 06:14:51,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 06:14:51,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 06:14:51,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 06:14:51,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 06:14:51,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 06:14:51,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 06:14:51,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 06:14:51,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 06:14:51,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 06:14:51,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 06:14:51,351 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 06:14:51,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 06:14:51,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 06:14:51,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 06:14:51,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 06:14:51,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 06:14:51,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 06:14:51,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 06:14:51,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 06:14:51,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 06:14:51,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 06:14:51,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 06:14:51,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 06:14:51,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 06:14:51,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 06:14:51,372 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-Delay.epf [2020-11-12 06:14:51,430 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 06:14:51,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 06:14:51,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 06:14:51,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 06:14:51,435 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 06:14:51,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 06:14:51,435 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 06:14:51,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 06:14:51,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 06:14:51,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 06:14:51,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 06:14:51,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 06:14:51,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 06:14:51,437 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 06:14:51,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 06:14:51,438 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 06:14:51,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 06:14:51,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 06:14:51,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 06:14:51,439 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 06:14:51,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 06:14:51,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 06:14:51,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 06:14:51,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 06:14:51,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 06:14:51,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 06:14:51,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 06:14:51,440 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 06:14:51,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 06:14:51,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 06:14:51,441 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=DELAY_SET WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 06:14:51,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 06:14:51,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 06:14:51,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 06:14:51,934 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 06:14:51,935 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 06:14:51,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i [2020-11-12 06:14:52,015 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3c76802f/6846f431a1194bdcb42b691cddfe5a72/FLAGf9ab54cc7 [2020-11-12 06:14:52,738 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 06:14:52,738 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i [2020-11-12 06:14:52,760 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3c76802f/6846f431a1194bdcb42b691cddfe5a72/FLAGf9ab54cc7 [2020-11-12 06:14:53,028 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3c76802f/6846f431a1194bdcb42b691cddfe5a72 [2020-11-12 06:14:53,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 06:14:53,041 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 06:14:53,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 06:14:53,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 06:14:53,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 06:14:53,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:14:53" (1/1) ... [2020-11-12 06:14:53,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a20ebfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53, skipping insertion in model container [2020-11-12 06:14:53,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:14:53" (1/1) ... [2020-11-12 06:14:53,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 06:14:53,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 06:14:53,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:14:53,630 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 06:14:53,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:14:53,811 INFO L208 MainTranslator]: Completed translation [2020-11-12 06:14:53,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53 WrapperNode [2020-11-12 06:14:53,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 06:14:53,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 06:14:53,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 06:14:53,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 06:14:53,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (1/1) ... [2020-11-12 06:14:53,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (1/1) ... [2020-11-12 06:14:53,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 06:14:53,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 06:14:53,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 06:14:53,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 06:14:53,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (1/1) ... [2020-11-12 06:14:53,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (1/1) ... [2020-11-12 06:14:53,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (1/1) ... [2020-11-12 06:14:53,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (1/1) ... [2020-11-12 06:14:53,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (1/1) ... [2020-11-12 06:14:53,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (1/1) ... [2020-11-12 06:14:53,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (1/1) ... [2020-11-12 06:14:53,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 06:14:53,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 06:14:53,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 06:14:53,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 06:14:53,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 06:14:54,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 06:14:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 06:14:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 06:14:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 06:14:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 06:14:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 06:14:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 06:14:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 06:14:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 06:14:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 06:14:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 06:14:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 06:14:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 06:14:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 06:14:54,077 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 06:14:54,558 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 06:14:54,558 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 06:14:54,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:14:54 BoogieIcfgContainer [2020-11-12 06:14:54,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 06:14:54,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 06:14:54,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 06:14:54,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 06:14:54,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:14:53" (1/3) ... [2020-11-12 06:14:54,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54589f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:14:54, skipping insertion in model container [2020-11-12 06:14:54,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (2/3) ... [2020-11-12 06:14:54,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54589f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:14:54, skipping insertion in model container [2020-11-12 06:14:54,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:14:54" (3/3) ... [2020-11-12 06:14:54,570 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc.i [2020-11-12 06:14:54,585 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 06:14:54,586 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 06:14:54,589 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 06:14:54,590 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 06:14:54,620 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,620 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,621 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,621 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,621 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,621 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,622 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,622 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,622 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,622 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,623 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,623 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,623 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,623 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,624 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,624 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,624 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,624 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,625 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,625 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,625 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,625 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,626 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,626 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,626 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,626 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,627 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,627 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,627 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,627 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,627 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,628 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,628 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,628 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,628 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,629 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,631 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,632 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,632 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,641 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,642 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,642 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,642 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,646 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,646 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,646 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,647 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:14:54,649 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 06:14:54,661 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 06:14:54,682 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 06:14:54,683 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 06:14:54,683 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 06:14:54,683 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 06:14:54,683 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 06:14:54,683 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 06:14:54,683 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 06:14:54,683 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 06:14:54,696 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 84 places, 77 transitions, 169 flow [2020-11-12 06:14:55,354 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8475 states, 8473 states have (on average 3.5872772335654433) internal successors, (30395), 8474 states have internal predecessors, (30395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:55,957 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 599ms [2020-11-12 06:14:55,990 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 8475 states, 8473 states have (on average 3.5872772335654433) internal successors, (30395), 8474 states have internal predecessors, (30395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:56,006 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 8475 states, 7837 states have (on average 1.3924971290034451) internal successors, (10913), 8474 states have internal predecessors, (10913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:56,023 INFO L276 IsEmpty]: Start isEmpty. Operand has 8475 states, 7837 states have (on average 1.3924971290034451) internal successors, (10913), 8474 states have internal predecessors, (10913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:56,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-12 06:14:56,046 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:14:56,047 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:14:56,048 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:14:56,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:14:56,055 INFO L82 PathProgramCache]: Analyzing trace with hash 161629245, now seen corresponding path program 1 times [2020-11-12 06:14:56,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:14:56,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241866236] [2020-11-12 06:14:56,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:14:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:14:56,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:14:56,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241866236] [2020-11-12 06:14:56,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:14:56,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:14:56,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307489507] [2020-11-12 06:14:56,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:14:56,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:14:56,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:14:56,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:14:56,532 INFO L87 Difference]: Start difference. First operand has 8475 states, 7837 states have (on average 1.3924971290034451) internal successors, (10913), 8474 states have internal predecessors, (10913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:56,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:14:56,829 INFO L93 Difference]: Finished difference Result 11247 states and 13088 transitions. [2020-11-12 06:14:56,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:14:56,831 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2020-11-12 06:14:56,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:14:56,872 INFO L225 Difference]: With dead ends: 11247 [2020-11-12 06:14:56,872 INFO L226 Difference]: Without dead ends: 3856 [2020-11-12 06:14:56,874 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:14:56,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3856 states. [2020-11-12 06:14:57,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3856 to 3856. [2020-11-12 06:14:57,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3856 states, 3604 states have (on average 1.451165371809101) internal successors, (5230), 3855 states have internal predecessors, (5230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:57,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3856 states to 3856 states and 5230 transitions. [2020-11-12 06:14:57,137 INFO L78 Accepts]: Start accepts. Automaton has 3856 states and 5230 transitions. Word has length 41 [2020-11-12 06:14:57,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:14:57,138 INFO L481 AbstractCegarLoop]: Abstraction has 3856 states and 5230 transitions. [2020-11-12 06:14:57,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:57,138 INFO L276 IsEmpty]: Start isEmpty. Operand 3856 states and 5230 transitions. [2020-11-12 06:14:57,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-12 06:14:57,194 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:14:57,194 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:14:57,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 06:14:57,195 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:14:57,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:14:57,195 INFO L82 PathProgramCache]: Analyzing trace with hash -2100618788, now seen corresponding path program 1 times [2020-11-12 06:14:57,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:14:57,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640055241] [2020-11-12 06:14:57,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:14:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:14:57,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:14:57,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640055241] [2020-11-12 06:14:57,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:14:57,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:14:57,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780306356] [2020-11-12 06:14:57,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:14:57,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:14:57,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:14:57,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:14:57,376 INFO L87 Difference]: Start difference. First operand 3856 states and 5230 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:57,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:14:57,547 INFO L93 Difference]: Finished difference Result 4288 states and 5881 transitions. [2020-11-12 06:14:57,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:14:57,548 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2020-11-12 06:14:57,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:14:57,562 INFO L225 Difference]: With dead ends: 4288 [2020-11-12 06:14:57,562 INFO L226 Difference]: Without dead ends: 2820 [2020-11-12 06:14:57,563 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:14:57,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2020-11-12 06:14:57,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2820. [2020-11-12 06:14:57,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2820 states, 2640 states have (on average 1.4757575757575758) internal successors, (3896), 2819 states have internal predecessors, (3896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:57,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2820 states to 2820 states and 3896 transitions. [2020-11-12 06:14:57,640 INFO L78 Accepts]: Start accepts. Automaton has 2820 states and 3896 transitions. Word has length 43 [2020-11-12 06:14:57,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:14:57,640 INFO L481 AbstractCegarLoop]: Abstraction has 2820 states and 3896 transitions. [2020-11-12 06:14:57,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:57,642 INFO L276 IsEmpty]: Start isEmpty. Operand 2820 states and 3896 transitions. [2020-11-12 06:14:57,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 06:14:57,647 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:14:57,647 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:14:57,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 06:14:57,648 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:14:57,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:14:57,649 INFO L82 PathProgramCache]: Analyzing trace with hash -759115397, now seen corresponding path program 1 times [2020-11-12 06:14:57,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:14:57,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730597685] [2020-11-12 06:14:57,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:14:57,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:14:57,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:14:57,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730597685] [2020-11-12 06:14:57,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:14:57,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:14:57,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60446091] [2020-11-12 06:14:57,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:14:57,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:14:57,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:14:57,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:14:57,824 INFO L87 Difference]: Start difference. First operand 2820 states and 3896 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:57,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:14:57,994 INFO L93 Difference]: Finished difference Result 4720 states and 6837 transitions. [2020-11-12 06:14:57,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:14:57,995 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2020-11-12 06:14:57,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:14:58,008 INFO L225 Difference]: With dead ends: 4720 [2020-11-12 06:14:58,009 INFO L226 Difference]: Without dead ends: 2700 [2020-11-12 06:14:58,009 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:14:58,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2020-11-12 06:14:58,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2700. [2020-11-12 06:14:58,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2700 states, 2520 states have (on average 1.488888888888889) internal successors, (3752), 2699 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:58,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2700 states to 2700 states and 3752 transitions. [2020-11-12 06:14:58,079 INFO L78 Accepts]: Start accepts. Automaton has 2700 states and 3752 transitions. Word has length 45 [2020-11-12 06:14:58,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:14:58,079 INFO L481 AbstractCegarLoop]: Abstraction has 2700 states and 3752 transitions. [2020-11-12 06:14:58,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:58,079 INFO L276 IsEmpty]: Start isEmpty. Operand 2700 states and 3752 transitions. [2020-11-12 06:14:58,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 06:14:58,084 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:14:58,084 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:14:58,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 06:14:58,085 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:14:58,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:14:58,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1088726909, now seen corresponding path program 2 times [2020-11-12 06:14:58,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:14:58,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878661590] [2020-11-12 06:14:58,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:14:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:14:58,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:14:58,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878661590] [2020-11-12 06:14:58,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:14:58,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:14:58,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382681235] [2020-11-12 06:14:58,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:14:58,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:14:58,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:14:58,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:14:58,211 INFO L87 Difference]: Start difference. First operand 2700 states and 3752 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:58,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:14:58,354 INFO L93 Difference]: Finished difference Result 2940 states and 4127 transitions. [2020-11-12 06:14:58,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:14:58,355 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2020-11-12 06:14:58,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:14:58,366 INFO L225 Difference]: With dead ends: 2940 [2020-11-12 06:14:58,366 INFO L226 Difference]: Without dead ends: 2138 [2020-11-12 06:14:58,366 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:14:58,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2020-11-12 06:14:58,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2138. [2020-11-12 06:14:58,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2138 states, 1998 states have (on average 1.5015015015015014) internal successors, (3000), 2137 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:58,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2138 states to 2138 states and 3000 transitions. [2020-11-12 06:14:58,432 INFO L78 Accepts]: Start accepts. Automaton has 2138 states and 3000 transitions. Word has length 45 [2020-11-12 06:14:58,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:14:58,432 INFO L481 AbstractCegarLoop]: Abstraction has 2138 states and 3000 transitions. [2020-11-12 06:14:58,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:58,433 INFO L276 IsEmpty]: Start isEmpty. Operand 2138 states and 3000 transitions. [2020-11-12 06:14:58,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-12 06:14:58,436 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:14:58,437 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:14:58,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 06:14:58,437 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:14:58,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:14:58,438 INFO L82 PathProgramCache]: Analyzing trace with hash 380395389, now seen corresponding path program 1 times [2020-11-12 06:14:58,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:14:58,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613972574] [2020-11-12 06:14:58,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:14:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:14:58,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:14:58,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613972574] [2020-11-12 06:14:58,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:14:58,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:14:58,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218388424] [2020-11-12 06:14:58,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:14:58,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:14:58,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:14:58,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:14:58,609 INFO L87 Difference]: Start difference. First operand 2138 states and 3000 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:58,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:14:58,919 INFO L93 Difference]: Finished difference Result 5022 states and 7584 transitions. [2020-11-12 06:14:58,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-12 06:14:58,920 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2020-11-12 06:14:58,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:14:58,931 INFO L225 Difference]: With dead ends: 5022 [2020-11-12 06:14:58,931 INFO L226 Difference]: Without dead ends: 2118 [2020-11-12 06:14:58,932 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-11-12 06:14:58,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2020-11-12 06:14:58,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1478. [2020-11-12 06:14:58,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1378 states have (on average 1.5413642960812772) internal successors, (2124), 1477 states have internal predecessors, (2124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:58,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 2124 transitions. [2020-11-12 06:14:58,990 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 2124 transitions. Word has length 46 [2020-11-12 06:14:58,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:14:58,990 INFO L481 AbstractCegarLoop]: Abstraction has 1478 states and 2124 transitions. [2020-11-12 06:14:58,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:58,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 2124 transitions. [2020-11-12 06:14:58,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 06:14:58,994 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:14:58,994 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:14:58,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 06:14:58,995 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:14:58,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:14:58,995 INFO L82 PathProgramCache]: Analyzing trace with hash -52437086, now seen corresponding path program 1 times [2020-11-12 06:14:58,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:14:58,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604455033] [2020-11-12 06:14:58,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:14:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:14:59,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:14:59,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604455033] [2020-11-12 06:14:59,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:14:59,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:14:59,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507391884] [2020-11-12 06:14:59,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:14:59,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:14:59,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:14:59,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:14:59,117 INFO L87 Difference]: Start difference. First operand 1478 states and 2124 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:59,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:14:59,303 INFO L93 Difference]: Finished difference Result 1814 states and 2627 transitions. [2020-11-12 06:14:59,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:14:59,303 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2020-11-12 06:14:59,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:14:59,308 INFO L225 Difference]: With dead ends: 1814 [2020-11-12 06:14:59,308 INFO L226 Difference]: Without dead ends: 774 [2020-11-12 06:14:59,308 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 06:14:59,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2020-11-12 06:14:59,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 774. [2020-11-12 06:14:59,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 694 states have (on average 1.3602305475504324) internal successors, (944), 773 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:59,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 944 transitions. [2020-11-12 06:14:59,330 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 944 transitions. Word has length 47 [2020-11-12 06:14:59,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:14:59,331 INFO L481 AbstractCegarLoop]: Abstraction has 774 states and 944 transitions. [2020-11-12 06:14:59,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:59,331 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 944 transitions. [2020-11-12 06:14:59,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-12 06:14:59,333 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:14:59,333 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:14:59,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 06:14:59,333 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:14:59,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:14:59,334 INFO L82 PathProgramCache]: Analyzing trace with hash -274644542, now seen corresponding path program 1 times [2020-11-12 06:14:59,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:14:59,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677554209] [2020-11-12 06:14:59,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:14:59,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:14:59,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:14:59,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677554209] [2020-11-12 06:14:59,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:14:59,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:14:59,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689146992] [2020-11-12 06:14:59,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:14:59,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:14:59,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:14:59,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:14:59,454 INFO L87 Difference]: Start difference. First operand 774 states and 944 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) [2020-11-12 06:14:59,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:14:59,585 INFO L93 Difference]: Finished difference Result 793 states and 982 transitions. [2020-11-12 06:14:59,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:14:59,586 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 [2020-11-12 06:14:59,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:14:59,590 INFO L225 Difference]: With dead ends: 793 [2020-11-12 06:14:59,590 INFO L226 Difference]: Without dead ends: 729 [2020-11-12 06:14:59,591 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:14:59,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2020-11-12 06:14:59,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 729. [2020-11-12 06:14:59,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 654 states have (on average 1.353211009174312) internal successors, (885), 728 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:59,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 885 transitions. [2020-11-12 06:14:59,611 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 885 transitions. Word has length 48 [2020-11-12 06:14:59,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:14:59,612 INFO L481 AbstractCegarLoop]: Abstraction has 729 states and 885 transitions. [2020-11-12 06:14:59,612 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) [2020-11-12 06:14:59,612 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 885 transitions. [2020-11-12 06:14:59,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-12 06:14:59,614 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:14:59,614 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:14:59,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 06:14:59,614 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:14:59,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:14:59,615 INFO L82 PathProgramCache]: Analyzing trace with hash -277170535, now seen corresponding path program 1 times [2020-11-12 06:14:59,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:14:59,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324705971] [2020-11-12 06:14:59,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:14:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:14:59,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:14:59,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324705971] [2020-11-12 06:14:59,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:14:59,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:14:59,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021374337] [2020-11-12 06:14:59,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:14:59,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:14:59,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:14:59,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:14:59,763 INFO L87 Difference]: Start difference. First operand 729 states and 885 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) [2020-11-12 06:14:59,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:14:59,924 INFO L93 Difference]: Finished difference Result 519 states and 640 transitions. [2020-11-12 06:14:59,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:14:59,925 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 [2020-11-12 06:14:59,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:14:59,927 INFO L225 Difference]: With dead ends: 519 [2020-11-12 06:14:59,927 INFO L226 Difference]: Without dead ends: 456 [2020-11-12 06:14:59,928 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 06:14:59,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-11-12 06:14:59,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2020-11-12 06:14:59,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 411 states have (on average 1.3187347931873479) internal successors, (542), 455 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:14:59,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 542 transitions. [2020-11-12 06:14:59,941 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 542 transitions. Word has length 49 [2020-11-12 06:14:59,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:14:59,942 INFO L481 AbstractCegarLoop]: Abstraction has 456 states and 542 transitions. [2020-11-12 06:14:59,942 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) [2020-11-12 06:14:59,942 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 542 transitions. [2020-11-12 06:14:59,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-12 06:14:59,944 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:14:59,944 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:14:59,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-12 06:14:59,944 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:14:59,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:14:59,945 INFO L82 PathProgramCache]: Analyzing trace with hash 2135820543, now seen corresponding path program 1 times [2020-11-12 06:14:59,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:14:59,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435602358] [2020-11-12 06:14:59,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:14:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:15:00,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:15:00,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435602358] [2020-11-12 06:15:00,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:15:00,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 06:15:00,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787433297] [2020-11-12 06:15:00,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 06:15:00,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:15:00,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 06:15:00,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 06:15:00,107 INFO L87 Difference]: Start difference. First operand 456 states and 542 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:15:00,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:15:00,209 INFO L93 Difference]: Finished difference Result 87 states and 113 transitions. [2020-11-12 06:15:00,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 06:15:00,210 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2020-11-12 06:15:00,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:15:00,210 INFO L225 Difference]: With dead ends: 87 [2020-11-12 06:15:00,210 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 06:15:00,211 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-11-12 06:15:00,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 06:15:00,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 06:15:00,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:15:00,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 06:15:00,212 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2020-11-12 06:15:00,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:15:00,212 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 06:15:00,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:15:00,212 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 06:15:00,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 06:15:00,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-12 06:15:00,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:15:00 BasicIcfg [2020-11-12 06:15:00,218 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 06:15:00,221 INFO L168 Benchmark]: Toolchain (without parser) took 7183.66 ms. Allocated memory was 302.0 MB in the beginning and 648.0 MB in the end (delta: 346.0 MB). Free memory was 277.2 MB in the beginning and 583.0 MB in the end (delta: -305.8 MB). Peak memory consumption was 41.4 MB. Max. memory is 16.0 GB. [2020-11-12 06:15:00,222 INFO L168 Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:15:00,223 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.18 ms. Allocated memory is still 302.0 MB. Free memory was 276.5 MB in the beginning and 244.6 MB in the end (delta: 31.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. [2020-11-12 06:15:00,224 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.64 ms. Allocated memory is still 302.0 MB. Free memory was 244.6 MB in the beginning and 242.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:15:00,224 INFO L168 Benchmark]: Boogie Preprocessor took 30.62 ms. Allocated memory is still 302.0 MB. Free memory was 242.6 MB in the beginning and 241.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:15:00,229 INFO L168 Benchmark]: RCFGBuilder took 663.41 ms. Allocated memory is still 302.0 MB. Free memory was 241.3 MB in the beginning and 263.5 MB in the end (delta: -22.2 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. [2020-11-12 06:15:00,230 INFO L168 Benchmark]: TraceAbstraction took 5655.95 ms. Allocated memory was 302.0 MB in the beginning and 648.0 MB in the end (delta: 346.0 MB). Free memory was 262.4 MB in the beginning and 583.0 MB in the end (delta: -320.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.0 GB. [2020-11-12 06:15:00,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 767.18 ms. Allocated memory is still 302.0 MB. Free memory was 276.5 MB in the beginning and 244.6 MB in the end (delta: 31.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 51.64 ms. Allocated memory is still 302.0 MB. Free memory was 244.6 MB in the beginning and 242.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.62 ms. Allocated memory is still 302.0 MB. Free memory was 242.6 MB in the beginning and 241.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 663.41 ms. Allocated memory is still 302.0 MB. Free memory was 241.3 MB in the beginning and 263.5 MB in the end (delta: -22.2 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5655.95 ms. Allocated memory was 302.0 MB in the beginning and 648.0 MB in the end (delta: 346.0 MB). Free memory was 262.4 MB in the beginning and 583.0 MB in the end (delta: -320.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.5s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 603 SDtfs, 705 SDslu, 2247 SDs, 0 SdLazy, 252 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8475occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 640 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 414 NumberOfCodeBlocks, 414 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 405 ConstructedInterpolants, 0 QuantifiedInterpolants, 51039 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...