/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/safe030_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 06:24:32,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 06:24:32,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 06:24:32,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 06:24:32,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 06:24:32,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 06:24:32,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 06:24:32,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 06:24:32,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 06:24:32,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 06:24:32,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 06:24:32,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 06:24:32,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 06:24:32,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 06:24:32,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 06:24:32,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 06:24:32,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 06:24:32,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 06:24:32,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 06:24:32,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 06:24:32,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 06:24:32,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 06:24:32,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 06:24:32,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 06:24:32,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 06:24:32,388 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 06:24:32,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 06:24:32,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 06:24:32,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 06:24:32,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 06:24:32,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 06:24:32,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 06:24:32,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 06:24:32,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 06:24:32,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 06:24:32,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 06:24:32,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 06:24:32,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 06:24:32,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 06:24:32,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 06:24:32,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 06:24:32,402 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 06:24:32,457 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 06:24:32,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 06:24:32,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 06:24:32,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 06:24:32,463 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 06:24:32,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 06:24:32,463 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 06:24:32,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 06:24:32,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 06:24:32,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 06:24:32,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 06:24:32,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 06:24:32,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 06:24:32,466 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 06:24:32,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 06:24:32,466 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 06:24:32,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 06:24:32,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 06:24:32,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 06:24:32,467 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 06:24:32,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 06:24:32,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 06:24:32,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 06:24:32,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 06:24:32,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 06:24:32,469 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 06:24:32,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 06:24:32,469 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 06:24:32,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 06:24:32,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 06:24:32,470 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 06:24:32,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 06:24:32,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 06:24:32,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 06:24:32,895 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 06:24:32,896 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 06:24:32,897 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2020-11-12 06:24:32,974 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf14e549a/b478d19570234d47b23834375b9c959c/FLAG39047d51e [2020-11-12 06:24:33,756 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 06:24:33,756 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.opt.i [2020-11-12 06:24:33,776 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf14e549a/b478d19570234d47b23834375b9c959c/FLAG39047d51e [2020-11-12 06:24:33,986 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf14e549a/b478d19570234d47b23834375b9c959c [2020-11-12 06:24:33,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 06:24:33,997 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 06:24:34,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 06:24:34,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 06:24:34,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 06:24:34,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:24:33" (1/1) ... [2020-11-12 06:24:34,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@337f3f83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:24:34, skipping insertion in model container [2020-11-12 06:24:34,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:24:33" (1/1) ... [2020-11-12 06:24:34,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 06:24:34,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 06:24:34,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:24:34,470 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 06:24:34,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:24:34,663 INFO L208 MainTranslator]: Completed translation [2020-11-12 06:24:34,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:24:34 WrapperNode [2020-11-12 06:24:34,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 06:24:34,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 06:24:34,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 06:24:34,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 06:24:34,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:24:34" (1/1) ... [2020-11-12 06:24:34,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:24:34" (1/1) ... [2020-11-12 06:24:34,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 06:24:34,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 06:24:34,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 06:24:34,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 06:24:34,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:24:34" (1/1) ... [2020-11-12 06:24:34,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:24:34" (1/1) ... [2020-11-12 06:24:34,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:24:34" (1/1) ... [2020-11-12 06:24:34,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:24:34" (1/1) ... [2020-11-12 06:24:34,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:24:34" (1/1) ... [2020-11-12 06:24:34,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:24:34" (1/1) ... [2020-11-12 06:24:34,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:24:34" (1/1) ... [2020-11-12 06:24:34,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 06:24:34,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 06:24:34,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 06:24:34,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 06:24:34,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:24:34" (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 06:24:34,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 06:24:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 06:24:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 06:24:34,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 06:24:34,919 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 06:24:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 06:24:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 06:24:34,921 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 06:24:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 06:24:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 06:24:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 06:24:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 06:24:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 06:24:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 06:24:34,925 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 06:24:35,363 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 06:24:35,364 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 06:24:35,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:24:35 BoogieIcfgContainer [2020-11-12 06:24:35,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 06:24:35,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 06:24:35,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 06:24:35,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 06:24:35,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:24:33" (1/3) ... [2020-11-12 06:24:35,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f0c46f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:24:35, skipping insertion in model container [2020-11-12 06:24:35,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:24:34" (2/3) ... [2020-11-12 06:24:35,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f0c46f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:24:35, skipping insertion in model container [2020-11-12 06:24:35,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:24:35" (3/3) ... [2020-11-12 06:24:35,375 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt.i [2020-11-12 06:24:35,392 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 06:24:35,392 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 06:24:35,396 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 06:24:35,397 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 06:24:35,430 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,431 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,431 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,431 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,432 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,432 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,432 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,432 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,433 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,433 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,433 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,433 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,434 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,434 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,434 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,434 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,434 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,435 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,435 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,435 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,435 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,436 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,437 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,437 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,437 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,437 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,437 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,438 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,438 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,438 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,438 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,439 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,439 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,447 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,447 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,457 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,457 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,457 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,458 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,468 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,468 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,468 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,468 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:24:35,473 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 06:24:35,484 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 06:24:35,507 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 06:24:35,507 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 06:24:35,507 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 06:24:35,507 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 06:24:35,507 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 06:24:35,507 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 06:24:35,507 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 06:24:35,508 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 06:24:35,521 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 84 places, 77 transitions, 169 flow [2020-11-12 06:24:36,380 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9846 states, 9844 states have (on average 3.615197074360016) internal successors, (35588), 9845 states have internal predecessors, (35588), 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 06:24:37,105 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 721ms [2020-11-12 06:24:37,149 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 9846 states, 9844 states have (on average 3.615197074360016) internal successors, (35588), 9845 states have internal predecessors, (35588), 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 06:24:37,175 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 9846 states, 9153 states have (on average 1.4067518846279907) internal successors, (12876), 9845 states have internal predecessors, (12876), 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 06:24:37,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 9846 states, 9153 states have (on average 1.4067518846279907) internal successors, (12876), 9845 states have internal predecessors, (12876), 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 06:24:37,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-12 06:24:37,295 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:24:37,299 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] [2020-11-12 06:24:37,299 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:24:37,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:24:37,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1260626285, now seen corresponding path program 1 times [2020-11-12 06:24:37,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:24:37,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295174917] [2020-11-12 06:24:37,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:24:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:24:37,843 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 06:24:37,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295174917] [2020-11-12 06:24:37,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:24:37,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:24:37,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327435747] [2020-11-12 06:24:37,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:24:37,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:24:37,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:24:37,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:24:37,894 INFO L87 Difference]: Start difference. First operand has 9846 states, 9153 states have (on average 1.4067518846279907) internal successors, (12876), 9845 states have internal predecessors, (12876), 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 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 06:24:38,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:24:38,312 INFO L93 Difference]: Finished difference Result 13206 states and 16218 transitions. [2020-11-12 06:24:38,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:24:38,314 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 40 [2020-11-12 06:24:38,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:24:38,358 INFO L225 Difference]: With dead ends: 13206 [2020-11-12 06:24:38,359 INFO L226 Difference]: Without dead ends: 4757 [2020-11-12 06:24:38,360 INFO L749 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 [2020-11-12 06:24:38,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4757 states. [2020-11-12 06:24:38,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4757 to 4757. [2020-11-12 06:24:38,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4757 states, 4456 states have (on average 1.4762118491921006) internal successors, (6578), 4756 states have internal predecessors, (6578), 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 06:24:38,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4757 states to 4757 states and 6578 transitions. [2020-11-12 06:24:38,605 INFO L78 Accepts]: Start accepts. Automaton has 4757 states and 6578 transitions. Word has length 40 [2020-11-12 06:24:38,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:24:38,606 INFO L481 AbstractCegarLoop]: Abstraction has 4757 states and 6578 transitions. [2020-11-12 06:24:38,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 06:24:38,606 INFO L276 IsEmpty]: Start isEmpty. Operand 4757 states and 6578 transitions. [2020-11-12 06:24:38,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-12 06:24:38,615 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:24:38,615 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] [2020-11-12 06:24:38,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 06:24:38,616 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:24:38,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:24:38,617 INFO L82 PathProgramCache]: Analyzing trace with hash 2024610516, now seen corresponding path program 1 times [2020-11-12 06:24:38,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:24:38,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92177709] [2020-11-12 06:24:38,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:24:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:24:38,794 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 06:24:38,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92177709] [2020-11-12 06:24:38,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:24:38,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:24:38,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418386170] [2020-11-12 06:24:38,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:24:38,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:24:38,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:24:38,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:24:38,801 INFO L87 Difference]: Start difference. First operand 4757 states and 6578 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 06:24:38,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:24:38,982 INFO L93 Difference]: Finished difference Result 5721 states and 8465 transitions. [2020-11-12 06:24:38,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:24:38,983 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2020-11-12 06:24:38,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:24:39,006 INFO L225 Difference]: With dead ends: 5721 [2020-11-12 06:24:39,006 INFO L226 Difference]: Without dead ends: 4307 [2020-11-12 06:24:39,007 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 06:24:39,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4307 states. [2020-11-12 06:24:39,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4307 to 4307. [2020-11-12 06:24:39,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4307 states, 4036 states have (on average 1.4846382556987117) internal successors, (5992), 4306 states have internal predecessors, (5992), 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 06:24:39,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4307 states to 4307 states and 5992 transitions. [2020-11-12 06:24:39,165 INFO L78 Accepts]: Start accepts. Automaton has 4307 states and 5992 transitions. Word has length 42 [2020-11-12 06:24:39,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:24:39,165 INFO L481 AbstractCegarLoop]: Abstraction has 4307 states and 5992 transitions. [2020-11-12 06:24:39,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 06:24:39,166 INFO L276 IsEmpty]: Start isEmpty. Operand 4307 states and 5992 transitions. [2020-11-12 06:24:39,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-12 06:24:39,174 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:24:39,174 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 06:24:39,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 06:24:39,175 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:24:39,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:24:39,176 INFO L82 PathProgramCache]: Analyzing trace with hash 55793164, now seen corresponding path program 1 times [2020-11-12 06:24:39,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:24:39,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692784729] [2020-11-12 06:24:39,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:24:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:24:39,350 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 06:24:39,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692784729] [2020-11-12 06:24:39,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:24:39,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:24:39,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622602034] [2020-11-12 06:24:39,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:24:39,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:24:39,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:24:39,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:24:39,353 INFO L87 Difference]: Start difference. First operand 4307 states and 5992 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 06:24:39,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:24:39,539 INFO L93 Difference]: Finished difference Result 7363 states and 10965 transitions. [2020-11-12 06:24:39,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:24:39,540 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 06:24:39,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:24:39,564 INFO L225 Difference]: With dead ends: 7363 [2020-11-12 06:24:39,565 INFO L226 Difference]: Without dead ends: 4583 [2020-11-12 06:24:39,565 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:24:39,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4583 states. [2020-11-12 06:24:39,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4583 to 3463. [2020-11-12 06:24:39,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3463 states, 3248 states have (on average 1.4935344827586208) internal successors, (4851), 3462 states have internal predecessors, (4851), 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 06:24:39,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 4851 transitions. [2020-11-12 06:24:39,680 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 4851 transitions. Word has length 43 [2020-11-12 06:24:39,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:24:39,681 INFO L481 AbstractCegarLoop]: Abstraction has 3463 states and 4851 transitions. [2020-11-12 06:24:39,681 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 06:24:39,681 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 4851 transitions. [2020-11-12 06:24:39,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-12 06:24:39,688 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:24:39,688 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:24:39,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 06:24:39,688 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:24:39,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:24:39,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1009491699, now seen corresponding path program 1 times [2020-11-12 06:24:39,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:24:39,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594400709] [2020-11-12 06:24:39,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:24:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:24:39,834 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 06:24:39,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594400709] [2020-11-12 06:24:39,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:24:39,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:24:39,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795727417] [2020-11-12 06:24:39,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:24:39,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:24:39,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:24:39,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:24:39,836 INFO L87 Difference]: Start difference. First operand 3463 states and 4851 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 06:24:40,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:24:40,020 INFO L93 Difference]: Finished difference Result 4083 states and 6070 transitions. [2020-11-12 06:24:40,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:24:40,021 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 44 [2020-11-12 06:24:40,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:24:40,039 INFO L225 Difference]: With dead ends: 4083 [2020-11-12 06:24:40,039 INFO L226 Difference]: Without dead ends: 3323 [2020-11-12 06:24:40,040 INFO L749 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 [2020-11-12 06:24:40,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3323 states. [2020-11-12 06:24:40,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3323 to 3323. [2020-11-12 06:24:40,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3323 states, 3118 states have (on average 1.4942270686337396) internal successors, (4659), 3322 states have internal predecessors, (4659), 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 06:24:40,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3323 states to 3323 states and 4659 transitions. [2020-11-12 06:24:40,157 INFO L78 Accepts]: Start accepts. Automaton has 3323 states and 4659 transitions. Word has length 44 [2020-11-12 06:24:40,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:24:40,157 INFO L481 AbstractCegarLoop]: Abstraction has 3323 states and 4659 transitions. [2020-11-12 06:24:40,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 06:24:40,158 INFO L276 IsEmpty]: Start isEmpty. Operand 3323 states and 4659 transitions. [2020-11-12 06:24:40,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 06:24:40,168 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:24:40,168 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 06:24:40,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 06:24:40,168 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:24:40,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:24:40,169 INFO L82 PathProgramCache]: Analyzing trace with hash -568704029, now seen corresponding path program 1 times [2020-11-12 06:24:40,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:24:40,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354961498] [2020-11-12 06:24:40,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:24:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:24:40,333 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 06:24:40,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354961498] [2020-11-12 06:24:40,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:24:40,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:24:40,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983043445] [2020-11-12 06:24:40,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:24:40,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:24:40,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:24:40,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:24:40,340 INFO L87 Difference]: Start difference. First operand 3323 states and 4659 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 06:24:40,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:24:40,519 INFO L93 Difference]: Finished difference Result 6079 states and 9113 transitions. [2020-11-12 06:24:40,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:24:40,519 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 06:24:40,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:24:40,539 INFO L225 Difference]: With dead ends: 6079 [2020-11-12 06:24:40,540 INFO L226 Difference]: Without dead ends: 3819 [2020-11-12 06:24:40,540 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 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 06:24:40,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3819 states. [2020-11-12 06:24:40,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3819 to 2763. [2020-11-12 06:24:40,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2598 states have (on average 1.489607390300231) internal successors, (3870), 2762 states have internal predecessors, (3870), 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 06:24:40,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 3870 transitions. [2020-11-12 06:24:40,644 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 3870 transitions. Word has length 45 [2020-11-12 06:24:40,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:24:40,644 INFO L481 AbstractCegarLoop]: Abstraction has 2763 states and 3870 transitions. [2020-11-12 06:24:40,644 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 06:24:40,644 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 3870 transitions. [2020-11-12 06:24:40,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 06:24:40,651 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:24:40,651 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 06:24:40,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 06:24:40,651 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:24:40,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:24:40,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1057344015, now seen corresponding path program 1 times [2020-11-12 06:24:40,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:24:40,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956226766] [2020-11-12 06:24:40,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:24:40,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:24:40,757 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 06:24:40,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956226766] [2020-11-12 06:24:40,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:24:40,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:24:40,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258573041] [2020-11-12 06:24:40,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:24:40,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:24:40,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:24:40,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:24:40,760 INFO L87 Difference]: Start difference. First operand 2763 states and 3870 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 06:24:40,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:24:40,924 INFO L93 Difference]: Finished difference Result 4460 states and 6761 transitions. [2020-11-12 06:24:40,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:24:40,925 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 06:24:40,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:24:40,938 INFO L225 Difference]: With dead ends: 4460 [2020-11-12 06:24:40,939 INFO L226 Difference]: Without dead ends: 2459 [2020-11-12 06:24:40,939 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 06:24:40,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2459 states. [2020-11-12 06:24:40,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2459 to 1659. [2020-11-12 06:24:40,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1659 states, 1534 states have (on average 1.498696219035202) internal successors, (2299), 1658 states have internal predecessors, (2299), 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 06:24:41,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1659 states to 1659 states and 2299 transitions. [2020-11-12 06:24:41,006 INFO L78 Accepts]: Start accepts. Automaton has 1659 states and 2299 transitions. Word has length 45 [2020-11-12 06:24:41,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:24:41,007 INFO L481 AbstractCegarLoop]: Abstraction has 1659 states and 2299 transitions. [2020-11-12 06:24:41,007 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 06:24:41,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1659 states and 2299 transitions. [2020-11-12 06:24:41,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-12 06:24:41,012 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:24:41,012 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 06:24:41,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 06:24:41,013 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:24:41,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:24:41,014 INFO L82 PathProgramCache]: Analyzing trace with hash -847047564, now seen corresponding path program 1 times [2020-11-12 06:24:41,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:24:41,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286230898] [2020-11-12 06:24:41,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:24:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:24:41,179 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 06:24:41,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286230898] [2020-11-12 06:24:41,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:24:41,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:24:41,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621401334] [2020-11-12 06:24:41,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:24:41,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:24:41,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:24:41,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:24:41,188 INFO L87 Difference]: Start difference. First operand 1659 states and 2299 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:24:41,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:24:41,359 INFO L93 Difference]: Finished difference Result 1804 states and 2415 transitions. [2020-11-12 06:24:41,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:24:41,360 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2020-11-12 06:24:41,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:24:41,369 INFO L225 Difference]: With dead ends: 1804 [2020-11-12 06:24:41,369 INFO L226 Difference]: Without dead ends: 1543 [2020-11-12 06:24:41,370 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 06:24:41,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2020-11-12 06:24:41,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1543. [2020-11-12 06:24:41,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1426 states have (on average 1.491584852734923) internal successors, (2127), 1542 states have internal predecessors, (2127), 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 06:24:41,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2127 transitions. [2020-11-12 06:24:41,423 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2127 transitions. Word has length 46 [2020-11-12 06:24:41,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:24:41,424 INFO L481 AbstractCegarLoop]: Abstraction has 1543 states and 2127 transitions. [2020-11-12 06:24:41,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:24:41,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2127 transitions. [2020-11-12 06:24:41,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-12 06:24:41,428 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:24:41,428 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 06:24:41,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 06:24:41,429 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:24:41,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:24:41,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1267731509, now seen corresponding path program 1 times [2020-11-12 06:24:41,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:24:41,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408133501] [2020-11-12 06:24:41,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:24:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:24:41,607 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 06:24:41,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408133501] [2020-11-12 06:24:41,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:24:41,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:24:41,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672806072] [2020-11-12 06:24:41,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:24:41,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:24:41,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:24:41,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:24:41,613 INFO L87 Difference]: Start difference. First operand 1543 states and 2127 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 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 06:24:41,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:24:41,765 INFO L93 Difference]: Finished difference Result 1336 states and 1746 transitions. [2020-11-12 06:24:41,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:24:41,766 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 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 06:24:41,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:24:41,779 INFO L225 Difference]: With dead ends: 1336 [2020-11-12 06:24:41,782 INFO L226 Difference]: Without dead ends: 1005 [2020-11-12 06:24:41,783 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 06:24:41,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2020-11-12 06:24:41,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 1005. [2020-11-12 06:24:41,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 924 states have (on average 1.4761904761904763) internal successors, (1364), 1004 states have internal predecessors, (1364), 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 06:24:41,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1364 transitions. [2020-11-12 06:24:41,814 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1364 transitions. Word has length 48 [2020-11-12 06:24:41,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:24:41,815 INFO L481 AbstractCegarLoop]: Abstraction has 1005 states and 1364 transitions. [2020-11-12 06:24:41,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 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 06:24:41,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1364 transitions. [2020-11-12 06:24:41,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-12 06:24:41,818 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:24:41,818 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 06:24:41,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-12 06:24:41,818 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:24:41,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:24:41,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1122401210, now seen corresponding path program 1 times [2020-11-12 06:24:41,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:24:41,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883228836] [2020-11-12 06:24:41,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:24:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:24:41,984 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 06:24:41,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883228836] [2020-11-12 06:24:41,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:24:41,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 06:24:41,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186768000] [2020-11-12 06:24:41,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 06:24:41,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:24:41,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 06:24:41,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 06:24:41,987 INFO L87 Difference]: Start difference. First operand 1005 states and 1364 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 06:24:42,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:24:42,109 INFO L93 Difference]: Finished difference Result 330 states and 383 transitions. [2020-11-12 06:24:42,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 06:24:42,109 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 06:24:42,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:24:42,110 INFO L225 Difference]: With dead ends: 330 [2020-11-12 06:24:42,110 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 06:24:42,110 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 06:24:42,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 06:24:42,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 06:24:42,111 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 06:24:42,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 06:24:42,111 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2020-11-12 06:24:42,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:24:42,111 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 06:24:42,111 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 06:24:42,111 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 06:24:42,112 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 06:24:42,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-12 06:24:42,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:24:42 BasicIcfg [2020-11-12 06:24:42,117 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 06:24:42,121 INFO L168 Benchmark]: Toolchain (without parser) took 8126.80 ms. Allocated memory was 302.0 MB in the beginning and 641.7 MB in the end (delta: 339.7 MB). Free memory was 277.4 MB in the beginning and 489.5 MB in the end (delta: -212.0 MB). Peak memory consumption was 130.2 MB. Max. memory is 16.0 GB. [2020-11-12 06:24:42,121 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:24:42,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.79 ms. Allocated memory is still 302.0 MB. Free memory was 276.8 MB in the beginning and 246.1 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-11-12 06:24:42,123 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.12 ms. Allocated memory is still 302.0 MB. Free memory was 246.1 MB in the beginning and 244.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:24:42,124 INFO L168 Benchmark]: Boogie Preprocessor took 66.00 ms. Allocated memory is still 302.0 MB. Free memory was 244.1 MB in the beginning and 285.1 MB in the end (delta: -40.9 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.0 GB. [2020-11-12 06:24:42,128 INFO L168 Benchmark]: RCFGBuilder took 579.60 ms. Allocated memory is still 302.0 MB. Free memory was 285.1 MB in the beginning and 262.9 MB in the end (delta: 22.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:24:42,130 INFO L168 Benchmark]: TraceAbstraction took 6749.25 ms. Allocated memory was 302.0 MB in the beginning and 641.7 MB in the end (delta: 339.7 MB). Free memory was 262.9 MB in the beginning and 489.5 MB in the end (delta: -226.5 MB). Peak memory consumption was 115.3 MB. Max. memory is 16.0 GB. [2020-11-12 06:24:42,142 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 661.79 ms. Allocated memory is still 302.0 MB. Free memory was 276.8 MB in the beginning and 246.1 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.12 ms. Allocated memory is still 302.0 MB. Free memory was 246.1 MB in the beginning and 244.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 66.00 ms. Allocated memory is still 302.0 MB. Free memory was 244.1 MB in the beginning and 285.1 MB in the end (delta: -40.9 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.0 GB. * RCFGBuilder took 579.60 ms. Allocated memory is still 302.0 MB. Free memory was 285.1 MB in the beginning and 262.9 MB in the end (delta: 22.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6749.25 ms. Allocated memory was 302.0 MB in the beginning and 641.7 MB in the end (delta: 339.7 MB). Free memory was 262.9 MB in the beginning and 489.5 MB in the end (delta: -226.5 MB). Peak memory consumption was 115.3 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: 6.6s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 711 SDtfs, 807 SDslu, 2403 SDs, 0 SdLazy, 242 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9846occurred 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: 0.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 2976 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 403 NumberOfCodeBlocks, 403 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 394 ConstructedInterpolants, 0 QuantifiedInterpolants, 45712 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...