/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 15:47:29,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 15:47:29,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 15:47:29,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-16 15:47:29,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-16 15:47:29,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-16 15:47:29,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-16 15:47:29,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-16 15:47:29,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-16 15:47:29,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-16 15:47:29,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-16 15:47:29,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-16 15:47:29,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-16 15:47:29,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-16 15:47:29,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-16 15:47:29,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-16 15:47:29,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-16 15:47:29,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-16 15:47:29,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-16 15:47:29,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-16 15:47:29,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-16 15:47:29,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-16 15:47:29,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-16 15:47:29,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-16 15:47:29,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-16 15:47:29,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-16 15:47:29,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-16 15:47:29,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-16 15:47:29,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-16 15:47:29,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2021-06-16 15:47:29,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-16 15:47:29,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-16 15:47:29,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-16 15:47:29,354 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 [2021-06-16 15:47:29,376 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 15:47:29,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 15:47:29,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 15:47:29,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 15:47:29,378 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 15:47:29,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 15:47:29,379 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 15:47:29,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 15:47:29,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 15:47:29,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 15:47:29,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 15:47:29,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 15:47:29,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 15:47:29,380 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 15:47:29,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 15:47:29,380 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 15:47:29,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 15:47:29,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 15:47:29,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 15:47:29,381 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 15:47:29,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 15:47:29,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 15:47:29,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 15:47:29,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 15:47:29,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 15:47:29,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 15:47:29,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 15:47:29,382 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 15:47:29,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 15:47:29,382 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-16 15:47:29,382 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 15:47:29,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 15:47:29,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 15:47:29,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 15:47:29,670 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-16 15:47:29,672 INFO L275 PluginConnector]: CDTParser initialized [2021-06-16 15:47:29,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2021-06-16 15:47:29,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6533d1224/37f302722879449abe1338869468c955/FLAG7dcafb85f [2021-06-16 15:47:30,258 INFO L306 CDTParser]: Found 1 translation units. [2021-06-16 15:47:30,259 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2021-06-16 15:47:30,266 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6533d1224/37f302722879449abe1338869468c955/FLAG7dcafb85f [2021-06-16 15:47:30,697 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6533d1224/37f302722879449abe1338869468c955 [2021-06-16 15:47:30,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 15:47:30,701 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-16 15:47:30,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-16 15:47:30,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-16 15:47:30,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-16 15:47:30,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 03:47:30" (1/1) ... [2021-06-16 15:47:30,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713386a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:30, skipping insertion in model container [2021-06-16 15:47:30,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 03:47:30" (1/1) ... [2021-06-16 15:47:30,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-16 15:47:30,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-16 15:47:30,863 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i[950,963] [2021-06-16 15:47:31,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 15:47:31,038 INFO L203 MainTranslator]: Completed pre-run [2021-06-16 15:47:31,047 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i[950,963] [2021-06-16 15:47:31,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 15:47:31,143 INFO L208 MainTranslator]: Completed translation [2021-06-16 15:47:31,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:31 WrapperNode [2021-06-16 15:47:31,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-16 15:47:31,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 15:47:31,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 15:47:31,145 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 15:47:31,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:31" (1/1) ... [2021-06-16 15:47:31,175 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:31" (1/1) ... [2021-06-16 15:47:31,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 15:47:31,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 15:47:31,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 15:47:31,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 15:47:31,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:31" (1/1) ... [2021-06-16 15:47:31,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:31" (1/1) ... [2021-06-16 15:47:31,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:31" (1/1) ... [2021-06-16 15:47:31,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:31" (1/1) ... [2021-06-16 15:47:31,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:31" (1/1) ... [2021-06-16 15:47:31,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:31" (1/1) ... [2021-06-16 15:47:31,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:31" (1/1) ... [2021-06-16 15:47:31,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 15:47:31,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 15:47:31,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 15:47:31,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 15:47:31,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 15:47:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-16 15:47:31,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-16 15:47:31,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-16 15:47:31,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-16 15:47:31,282 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-16 15:47:31,282 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-16 15:47:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-16 15:47:31,283 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-16 15:47:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-16 15:47:31,283 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-16 15:47:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-16 15:47:31,283 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-16 15:47:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-16 15:47:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-16 15:47:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 15:47:31,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 15:47:31,284 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 15:47:31,733 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 15:47:31,734 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-16 15:47:31,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 03:47:31 BoogieIcfgContainer [2021-06-16 15:47:31,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 15:47:31,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 15:47:31,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 15:47:31,739 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 15:47:31,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.06 03:47:30" (1/3) ... [2021-06-16 15:47:31,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac2a8f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 03:47:31, skipping insertion in model container [2021-06-16 15:47:31,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:31" (2/3) ... [2021-06-16 15:47:31,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac2a8f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 03:47:31, skipping insertion in model container [2021-06-16 15:47:31,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 03:47:31" (3/3) ... [2021-06-16 15:47:31,742 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_tso.oepc.i [2021-06-16 15:47:31,746 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 15:47:31,746 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 15:47:31,746 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 15:47:31,747 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 15:47:31,783 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,784 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,784 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,784 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,784 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,784 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,784 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,784 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,785 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,785 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,785 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,785 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,785 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,786 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,786 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,786 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,788 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,788 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,788 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,788 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,788 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,788 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,789 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,789 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,789 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,789 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,789 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,789 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,789 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,790 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,790 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,790 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,790 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,790 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,790 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,790 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,790 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,790 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,790 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,791 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,793 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,793 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,794 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,794 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,797 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,798 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,799 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,800 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,800 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,800 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,802 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,802 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,802 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,802 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:31,804 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-16 15:47:31,818 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-16 15:47:31,837 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 15:47:31,837 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 15:47:31,837 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 15:47:31,838 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 15:47:31,838 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 15:47:31,838 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 15:47:31,838 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 15:47:31,839 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 15:47:36,838 INFO L276 IsEmpty]: Start isEmpty. Operand has 51814 states, 43282 states have (on average 2.5915392079848436) internal successors, (112167), 51813 states have internal predecessors, (112167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:36,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-16 15:47:36,880 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:47:36,881 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:47:36,881 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:47:36,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:47:36,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1675625032, now seen corresponding path program 1 times [2021-06-16 15:47:36,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:47:36,895 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145460941] [2021-06-16 15:47:36,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:47:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:47:37,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:37,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:37,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:37,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:47:37,230 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-16 15:47:37,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-16 15:47:37,243 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:47:37,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:47:37,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:37,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:47:37,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:37,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:47:37,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:37,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:37,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:47:37,280 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:47:37,280 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145460941] [2021-06-16 15:47:37,281 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145460941] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:47:37,281 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:47:37,281 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:47:37,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703805260] [2021-06-16 15:47:37,283 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:47:37,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:47:37,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:47:37,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:47:37,354 INFO L87 Difference]: Start difference. First operand has 51814 states, 43282 states have (on average 2.5915392079848436) internal successors, (112167), 51813 states have internal predecessors, (112167), 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 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:38,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:47:38,397 INFO L93 Difference]: Finished difference Result 114818 states and 255765 transitions. [2021-06-16 15:47:38,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 15:47:38,399 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-06-16 15:47:38,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:47:38,536 INFO L225 Difference]: With dead ends: 114818 [2021-06-16 15:47:38,536 INFO L226 Difference]: Without dead ends: 18688 [2021-06-16 15:47:38,538 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 189.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-16 15:47:38,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18688 states. [2021-06-16 15:47:39,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18688 to 13600. [2021-06-16 15:47:39,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13600 states, 13390 states have (on average 2.530470500373413) internal successors, (33883), 13599 states have internal predecessors, (33883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:39,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13600 states to 13600 states and 33883 transitions. [2021-06-16 15:47:39,241 INFO L78 Accepts]: Start accepts. Automaton has 13600 states and 33883 transitions. Word has length 55 [2021-06-16 15:47:39,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:47:39,243 INFO L482 AbstractCegarLoop]: Abstraction has 13600 states and 33883 transitions. [2021-06-16 15:47:39,243 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:39,243 INFO L276 IsEmpty]: Start isEmpty. Operand 13600 states and 33883 transitions. [2021-06-16 15:47:39,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-16 15:47:39,259 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:47:39,259 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:47:39,260 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 15:47:39,260 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:47:39,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:47:39,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1640649127, now seen corresponding path program 1 times [2021-06-16 15:47:39,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:47:39,262 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128542171] [2021-06-16 15:47:39,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:47:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:47:39,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:39,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:39,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:39,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:47:39,372 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-16 15:47:39,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-16 15:47:39,387 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:47:39,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:47:39,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:39,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:47:39,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:39,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:47:39,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:39,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:39,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:47:39,428 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:47:39,428 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128542171] [2021-06-16 15:47:39,428 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128542171] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:47:39,428 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:47:39,428 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:47:39,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65986629] [2021-06-16 15:47:39,437 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:47:39,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:47:39,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:47:39,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:47:39,439 INFO L87 Difference]: Start difference. First operand 13600 states and 33883 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:39,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:47:39,863 INFO L93 Difference]: Finished difference Result 22504 states and 60060 transitions. [2021-06-16 15:47:39,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 15:47:39,864 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-06-16 15:47:39,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:47:39,904 INFO L225 Difference]: With dead ends: 22504 [2021-06-16 15:47:39,905 INFO L226 Difference]: Without dead ends: 16648 [2021-06-16 15:47:39,906 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 276.0ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-16 15:47:40,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16648 states. [2021-06-16 15:47:40,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16648 to 12304. [2021-06-16 15:47:40,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12304 states, 12094 states have (on average 2.531420539110303) internal successors, (30615), 12303 states have internal predecessors, (30615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:40,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12304 states to 12304 states and 30615 transitions. [2021-06-16 15:47:40,466 INFO L78 Accepts]: Start accepts. Automaton has 12304 states and 30615 transitions. Word has length 57 [2021-06-16 15:47:40,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:47:40,466 INFO L482 AbstractCegarLoop]: Abstraction has 12304 states and 30615 transitions. [2021-06-16 15:47:40,466 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:40,467 INFO L276 IsEmpty]: Start isEmpty. Operand 12304 states and 30615 transitions. [2021-06-16 15:47:40,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-16 15:47:40,479 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:47:40,480 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:47:40,480 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 15:47:40,480 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:47:40,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:47:40,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1849117062, now seen corresponding path program 1 times [2021-06-16 15:47:40,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:47:40,481 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560860205] [2021-06-16 15:47:40,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:47:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:47:40,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:40,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:40,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:40,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:47:40,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:40,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:47:40,557 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-16 15:47:40,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-16 15:47:40,572 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:47:40,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:47:40,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:40,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:47:40,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:40,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:47:40,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:40,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:40,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:47:40,608 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:47:40,608 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560860205] [2021-06-16 15:47:40,609 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560860205] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:47:40,609 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:47:40,609 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-16 15:47:40,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130905325] [2021-06-16 15:47:40,609 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-16 15:47:40,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:47:40,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-16 15:47:40,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-16 15:47:40,610 INFO L87 Difference]: Start difference. First operand 12304 states and 30615 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:40,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:47:40,797 INFO L93 Difference]: Finished difference Result 23544 states and 60379 transitions. [2021-06-16 15:47:40,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-16 15:47:40,800 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-06-16 15:47:40,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:47:40,837 INFO L225 Difference]: With dead ends: 23544 [2021-06-16 15:47:40,837 INFO L226 Difference]: Without dead ends: 14138 [2021-06-16 15:47:40,841 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 116.9ms TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-06-16 15:47:40,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14138 states. [2021-06-16 15:47:41,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14138 to 10410. [2021-06-16 15:47:41,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10410 states, 10230 states have (on average 2.5761485826001955) internal successors, (26354), 10409 states have internal predecessors, (26354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:41,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10410 states to 10410 states and 26354 transitions. [2021-06-16 15:47:41,190 INFO L78 Accepts]: Start accepts. Automaton has 10410 states and 26354 transitions. Word has length 59 [2021-06-16 15:47:41,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:47:41,191 INFO L482 AbstractCegarLoop]: Abstraction has 10410 states and 26354 transitions. [2021-06-16 15:47:41,191 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:41,191 INFO L276 IsEmpty]: Start isEmpty. Operand 10410 states and 26354 transitions. [2021-06-16 15:47:41,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-16 15:47:41,204 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:47:41,204 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:47:41,204 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-16 15:47:41,205 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:47:41,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:47:41,205 INFO L82 PathProgramCache]: Analyzing trace with hash -367746279, now seen corresponding path program 1 times [2021-06-16 15:47:41,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:47:41,208 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663270018] [2021-06-16 15:47:41,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:47:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:47:41,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:41,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:41,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:41,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:47:41,286 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-16 15:47:41,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-16 15:47:41,299 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:47:41,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:47:41,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:41,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:47:41,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:41,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:47:41,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:41,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:41,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:47:41,330 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:47:41,330 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663270018] [2021-06-16 15:47:41,330 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663270018] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:47:41,330 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:47:41,330 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:47:41,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761616274] [2021-06-16 15:47:41,331 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:47:41,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:47:41,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:47:41,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:47:41,331 INFO L87 Difference]: Start difference. First operand 10410 states and 26354 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:41,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:47:41,670 INFO L93 Difference]: Finished difference Result 14890 states and 38730 transitions. [2021-06-16 15:47:41,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 15:47:41,670 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2021-06-16 15:47:41,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:47:41,703 INFO L225 Difference]: With dead ends: 14890 [2021-06-16 15:47:41,703 INFO L226 Difference]: Without dead ends: 12938 [2021-06-16 15:47:41,704 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 148.0ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-16 15:47:41,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12938 states. [2021-06-16 15:47:41,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12938 to 9050. [2021-06-16 15:47:41,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9050 states, 8910 states have (on average 2.575533108866442) internal successors, (22948), 9049 states have internal predecessors, (22948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:41,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 22948 transitions. [2021-06-16 15:47:41,934 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 22948 transitions. Word has length 61 [2021-06-16 15:47:41,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:47:41,936 INFO L482 AbstractCegarLoop]: Abstraction has 9050 states and 22948 transitions. [2021-06-16 15:47:41,936 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:41,936 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 22948 transitions. [2021-06-16 15:47:41,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-16 15:47:41,949 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:47:41,950 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:47:41,950 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-16 15:47:41,950 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:47:41,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:47:41,950 INFO L82 PathProgramCache]: Analyzing trace with hash 10417039, now seen corresponding path program 1 times [2021-06-16 15:47:41,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:47:41,951 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503208958] [2021-06-16 15:47:41,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:47:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:47:41,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:41,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:42,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:42,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:47:42,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:42,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:47:42,006 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-16 15:47:42,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-16 15:47:42,016 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:47:42,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:47:42,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:42,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:47:42,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:42,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:47:42,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:42,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:42,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:47:42,052 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:47:42,052 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503208958] [2021-06-16 15:47:42,052 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503208958] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:47:42,053 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:47:42,053 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-16 15:47:42,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469298484] [2021-06-16 15:47:42,054 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-16 15:47:42,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:47:42,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-16 15:47:42,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-16 15:47:42,054 INFO L87 Difference]: Start difference. First operand 9050 states and 22948 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:42,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:47:42,344 INFO L93 Difference]: Finished difference Result 20618 states and 55845 transitions. [2021-06-16 15:47:42,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-16 15:47:42,344 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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 62 [2021-06-16 15:47:42,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:47:42,366 INFO L225 Difference]: With dead ends: 20618 [2021-06-16 15:47:42,367 INFO L226 Difference]: Without dead ends: 8842 [2021-06-16 15:47:42,367 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 149.6ms TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2021-06-16 15:47:42,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8842 states. [2021-06-16 15:47:42,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8842 to 6410. [2021-06-16 15:47:42,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6410 states, 6310 states have (on average 2.577179080824089) internal successors, (16262), 6409 states have internal predecessors, (16262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:42,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6410 states to 6410 states and 16262 transitions. [2021-06-16 15:47:42,489 INFO L78 Accepts]: Start accepts. Automaton has 6410 states and 16262 transitions. Word has length 62 [2021-06-16 15:47:42,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:47:42,489 INFO L482 AbstractCegarLoop]: Abstraction has 6410 states and 16262 transitions. [2021-06-16 15:47:42,489 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:42,490 INFO L276 IsEmpty]: Start isEmpty. Operand 6410 states and 16262 transitions. [2021-06-16 15:47:42,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-16 15:47:42,497 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:47:42,497 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:47:42,499 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-16 15:47:42,499 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:47:42,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:47:42,499 INFO L82 PathProgramCache]: Analyzing trace with hash 17228992, now seen corresponding path program 1 times [2021-06-16 15:47:42,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:47:42,501 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513860648] [2021-06-16 15:47:42,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:47:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:47:42,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:42,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:42,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:42,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:47:42,548 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-16 15:47:42,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-16 15:47:42,559 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:47:42,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:47:42,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:42,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:47:42,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:42,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:47:42,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:42,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:42,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:47:42,589 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:47:42,589 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513860648] [2021-06-16 15:47:42,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513860648] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:47:42,589 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:47:42,589 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:47:42,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240814683] [2021-06-16 15:47:42,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:47:42,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:47:42,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:47:42,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:47:42,590 INFO L87 Difference]: Start difference. First operand 6410 states and 16262 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:42,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:47:42,755 INFO L93 Difference]: Finished difference Result 10434 states and 29731 transitions. [2021-06-16 15:47:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 15:47:42,755 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2021-06-16 15:47:42,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:47:42,772 INFO L225 Difference]: With dead ends: 10434 [2021-06-16 15:47:42,772 INFO L226 Difference]: Without dead ends: 7714 [2021-06-16 15:47:42,772 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 128.2ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-16 15:47:42,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7714 states. [2021-06-16 15:47:42,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7714 to 5306. [2021-06-16 15:47:42,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5306 states, 5206 states have (on average 2.574337303111794) internal successors, (13402), 5305 states have internal predecessors, (13402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:42,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5306 states to 5306 states and 13402 transitions. [2021-06-16 15:47:42,905 INFO L78 Accepts]: Start accepts. Automaton has 5306 states and 13402 transitions. Word has length 62 [2021-06-16 15:47:42,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:47:42,905 INFO L482 AbstractCegarLoop]: Abstraction has 5306 states and 13402 transitions. [2021-06-16 15:47:42,906 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:42,906 INFO L276 IsEmpty]: Start isEmpty. Operand 5306 states and 13402 transitions. [2021-06-16 15:47:42,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-16 15:47:42,915 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:47:42,915 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:47:42,915 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-16 15:47:42,915 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:47:42,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:47:42,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1565503834, now seen corresponding path program 1 times [2021-06-16 15:47:42,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:47:42,916 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088706937] [2021-06-16 15:47:42,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:47:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:47:42,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:42,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:42,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:42,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:47:42,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:42,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:47:42,945 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:47:42,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:47:42,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:42,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:47:42,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:42,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:47:42,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:42,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:42,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:47:42,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:47:42,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088706937] [2021-06-16 15:47:42,974 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088706937] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:47:42,974 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:47:42,974 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:47:42,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314718718] [2021-06-16 15:47:42,974 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:47:42,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:47:42,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:47:42,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:47:42,975 INFO L87 Difference]: Start difference. First operand 5306 states and 13402 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:43,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:47:43,046 INFO L93 Difference]: Finished difference Result 6904 states and 18071 transitions. [2021-06-16 15:47:43,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 15:47:43,047 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 63 [2021-06-16 15:47:43,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:47:43,052 INFO L225 Difference]: With dead ends: 6904 [2021-06-16 15:47:43,052 INFO L226 Difference]: Without dead ends: 2719 [2021-06-16 15:47:43,052 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 60.5ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:47:43,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2021-06-16 15:47:43,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2719. [2021-06-16 15:47:43,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2719 states, 2619 states have (on average 2.7888507063764796) internal successors, (7304), 2718 states have internal predecessors, (7304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:43,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 7304 transitions. [2021-06-16 15:47:43,087 INFO L78 Accepts]: Start accepts. Automaton has 2719 states and 7304 transitions. Word has length 63 [2021-06-16 15:47:43,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:47:43,087 INFO L482 AbstractCegarLoop]: Abstraction has 2719 states and 7304 transitions. [2021-06-16 15:47:43,088 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:43,088 INFO L276 IsEmpty]: Start isEmpty. Operand 2719 states and 7304 transitions. [2021-06-16 15:47:43,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-16 15:47:43,090 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:47:43,090 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:47:43,090 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-16 15:47:43,090 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:47:43,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:47:43,091 INFO L82 PathProgramCache]: Analyzing trace with hash 700858364, now seen corresponding path program 2 times [2021-06-16 15:47:43,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:47:43,091 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935392557] [2021-06-16 15:47:43,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:47:43,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:47:43,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:43,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:47:43,116 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:47:43,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:47:43,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:47:43,134 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:47:43,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:47:43,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:43,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:47:43,141 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:47:43,141 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935392557] [2021-06-16 15:47:43,141 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935392557] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:47:43,141 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:47:43,141 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-16 15:47:43,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008408872] [2021-06-16 15:47:43,142 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-16 15:47:43,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:47:43,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-16 15:47:43,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-16 15:47:43,142 INFO L87 Difference]: Start difference. First operand 2719 states and 7304 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:43,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:47:43,232 INFO L93 Difference]: Finished difference Result 3362 states and 8652 transitions. [2021-06-16 15:47:43,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 15:47:43,232 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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 63 [2021-06-16 15:47:43,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:47:43,237 INFO L225 Difference]: With dead ends: 3362 [2021-06-16 15:47:43,237 INFO L226 Difference]: Without dead ends: 2610 [2021-06-16 15:47:43,238 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 65.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:47:43,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2610 states. [2021-06-16 15:47:43,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2610 to 2610. [2021-06-16 15:47:43,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2610 states, 2510 states have (on average 2.7968127490039842) internal successors, (7020), 2609 states have internal predecessors, (7020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:43,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2610 states to 2610 states and 7020 transitions. [2021-06-16 15:47:43,273 INFO L78 Accepts]: Start accepts. Automaton has 2610 states and 7020 transitions. Word has length 63 [2021-06-16 15:47:43,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:47:43,273 INFO L482 AbstractCegarLoop]: Abstraction has 2610 states and 7020 transitions. [2021-06-16 15:47:43,273 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:43,273 INFO L276 IsEmpty]: Start isEmpty. Operand 2610 states and 7020 transitions. [2021-06-16 15:47:43,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-06-16 15:47:43,277 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:47:43,277 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:47:43,277 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-16 15:47:43,277 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:47:43,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:47:43,278 INFO L82 PathProgramCache]: Analyzing trace with hash 2026793785, now seen corresponding path program 1 times [2021-06-16 15:47:43,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:47:43,278 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73299313] [2021-06-16 15:47:43,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:47:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:47:43,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:43,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:47:43,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:47:43,334 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:47:43,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:47:43,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:47:43,353 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:47:43,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:47:43,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:43,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:47:43,364 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:47:43,364 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73299313] [2021-06-16 15:47:43,364 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73299313] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:47:43,364 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:47:43,364 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:47:43,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824897620] [2021-06-16 15:47:43,364 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:47:43,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:47:43,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:47:43,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:47:43,365 INFO L87 Difference]: Start difference. First operand 2610 states and 7020 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:43,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:47:43,491 INFO L93 Difference]: Finished difference Result 2734 states and 6809 transitions. [2021-06-16 15:47:43,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 15:47:43,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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 64 [2021-06-16 15:47:43,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:47:43,495 INFO L225 Difference]: With dead ends: 2734 [2021-06-16 15:47:43,496 INFO L226 Difference]: Without dead ends: 2041 [2021-06-16 15:47:43,496 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 89.3ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-16 15:47:43,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2041 states. [2021-06-16 15:47:43,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2041 to 2041. [2021-06-16 15:47:43,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2041 states, 1945 states have (on average 2.7120822622107967) internal successors, (5275), 2040 states have internal predecessors, (5275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:43,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2041 states to 2041 states and 5275 transitions. [2021-06-16 15:47:43,524 INFO L78 Accepts]: Start accepts. Automaton has 2041 states and 5275 transitions. Word has length 64 [2021-06-16 15:47:43,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:47:43,524 INFO L482 AbstractCegarLoop]: Abstraction has 2041 states and 5275 transitions. [2021-06-16 15:47:43,525 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:43,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2041 states and 5275 transitions. [2021-06-16 15:47:43,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-16 15:47:43,528 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:47:43,529 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:47:43,529 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-16 15:47:43,529 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:47:43,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:47:43,529 INFO L82 PathProgramCache]: Analyzing trace with hash 609916993, now seen corresponding path program 1 times [2021-06-16 15:47:43,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:47:43,529 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784276372] [2021-06-16 15:47:43,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:47:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:47:43,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:43,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:47:43,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:47:43,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:47:43,580 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:47:43,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:47:43,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:47:43,606 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:47:43,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:47:43,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:43,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:47:43,651 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:47:43,651 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784276372] [2021-06-16 15:47:43,651 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784276372] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:47:43,651 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:47:43,651 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-16 15:47:43,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567244972] [2021-06-16 15:47:43,651 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-16 15:47:43,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:47:43,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-16 15:47:43,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-16 15:47:43,652 INFO L87 Difference]: Start difference. First operand 2041 states and 5275 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:43,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:47:43,784 INFO L93 Difference]: Finished difference Result 1384 states and 2923 transitions. [2021-06-16 15:47:43,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-16 15:47:43,784 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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 65 [2021-06-16 15:47:43,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:47:43,785 INFO L225 Difference]: With dead ends: 1384 [2021-06-16 15:47:43,785 INFO L226 Difference]: Without dead ends: 883 [2021-06-16 15:47:43,786 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 109.2ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-16 15:47:43,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2021-06-16 15:47:43,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2021-06-16 15:47:43,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 820 states have (on average 2.2609756097560973) internal successors, (1854), 882 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:43,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1854 transitions. [2021-06-16 15:47:43,794 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1854 transitions. Word has length 65 [2021-06-16 15:47:43,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:47:43,794 INFO L482 AbstractCegarLoop]: Abstraction has 883 states and 1854 transitions. [2021-06-16 15:47:43,794 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:43,795 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1854 transitions. [2021-06-16 15:47:43,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-06-16 15:47:43,795 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:47:43,795 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:47:43,795 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-16 15:47:43,795 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:47:43,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:47:43,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1822166216, now seen corresponding path program 1 times [2021-06-16 15:47:43,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:47:43,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963595898] [2021-06-16 15:47:43,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:47:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:47:43,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:43,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:47:43,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:47:43,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:47:43,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:47:43,829 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:47:43,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:47:43,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:47:43,848 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:47:43,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:47:43,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:47:43,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:47:43,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:47:43,855 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:47:43,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963595898] [2021-06-16 15:47:43,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963595898] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:47:43,855 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:47:43,855 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-16 15:47:43,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369640655] [2021-06-16 15:47:43,856 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-16 15:47:43,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:47:43,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-16 15:47:43,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-16 15:47:43,856 INFO L87 Difference]: Start difference. First operand 883 states and 1854 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:43,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:47:43,926 INFO L93 Difference]: Finished difference Result 361 states and 525 transitions. [2021-06-16 15:47:43,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 15:47:43,926 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 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 67 [2021-06-16 15:47:43,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:47:43,926 INFO L225 Difference]: With dead ends: 361 [2021-06-16 15:47:43,926 INFO L226 Difference]: Without dead ends: 0 [2021-06-16 15:47:43,926 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 77.4ms TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-06-16 15:47:43,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-16 15:47:43,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-16 15:47:43,927 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) [2021-06-16 15:47:43,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-16 15:47:43,927 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2021-06-16 15:47:43,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:47:43,927 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-16 15:47:43,927 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:47:43,927 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-16 15:47:43,927 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-16 15:47:43,928 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-16 15:47:43,929 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-16 15:47:43,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.06 03:47:43 BasicIcfg [2021-06-16 15:47:43,930 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-16 15:47:43,932 INFO L168 Benchmark]: Toolchain (without parser) took 13229.56 ms. Allocated memory was 201.3 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 163.8 MB in the beginning and 2.5 GB in the end (delta: -2.3 GB). Peak memory consumption was 564.9 MB. Max. memory is 8.0 GB. [2021-06-16 15:47:43,932 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 201.3 MB. Free memory is still 182.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 15:47:43,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 441.61 ms. Allocated memory is still 201.3 MB. Free memory was 163.6 MB in the beginning and 163.4 MB in the end (delta: 281.0 kB). Peak memory consumption was 16.0 MB. Max. memory is 8.0 GB. [2021-06-16 15:47:43,933 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.75 ms. Allocated memory is still 201.3 MB. Free memory was 163.4 MB in the beginning and 160.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-16 15:47:43,933 INFO L168 Benchmark]: Boogie Preprocessor took 25.61 ms. Allocated memory is still 201.3 MB. Free memory was 160.7 MB in the beginning and 159.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-16 15:47:43,933 INFO L168 Benchmark]: RCFGBuilder took 514.66 ms. Allocated memory is still 201.3 MB. Free memory was 159.2 MB in the beginning and 133.5 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2021-06-16 15:47:43,936 INFO L168 Benchmark]: TraceAbstraction took 12192.83 ms. Allocated memory was 201.3 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 133.5 MB in the beginning and 2.5 GB in the end (delta: -2.4 GB). Peak memory consumption was 535.3 MB. Max. memory is 8.0 GB. [2021-06-16 15:47:43,937 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 201.3 MB. Free memory is still 182.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 441.61 ms. Allocated memory is still 201.3 MB. Free memory was 163.6 MB in the beginning and 163.4 MB in the end (delta: 281.0 kB). Peak memory consumption was 16.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 49.75 ms. Allocated memory is still 201.3 MB. Free memory was 163.4 MB in the beginning and 160.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 25.61 ms. Allocated memory is still 201.3 MB. Free memory was 160.7 MB in the beginning and 159.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 514.66 ms. Allocated memory is still 201.3 MB. Free memory was 159.2 MB in the beginning and 133.5 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 12192.83 ms. Allocated memory was 201.3 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 133.5 MB in the beginning and 2.5 GB in the end (delta: -2.4 GB). Peak memory consumption was 535.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 265090, positive: 256827, positive conditional: 256827, positive unconditional: 0, negative: 8263, negative conditional: 8263, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 262642, positive: 256827, positive conditional: 0, positive unconditional: 256827, negative: 5815, negative conditional: 0, negative unconditional: 5815, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1366, positive: 1343, positive conditional: 0, positive unconditional: 1343, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1366, positive: 1336, positive conditional: 0, positive unconditional: 1336, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 77, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 262642, positive: 255484, positive conditional: 0, positive unconditional: 255484, negative: 5792, negative conditional: 0, negative unconditional: 5792, unknown: 1366, unknown conditional: 0, unknown unconditional: 1366] , Statistics on independence cache: Total cache size (in pairs): 1366, Positive cache size: 1343, Positive conditional cache size: 0, Positive unconditional cache size: 1343, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Independence queries for same thread: 2448 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 126 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12092.3ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 249.2ms, AutomataDifference: 3332.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4875.2ms, PartialOrderReductionTime: 4863.9ms, HoareTripleCheckerStatistics: 1306 SDtfs, 2202 SDslu, 4834 SDs, 0 SdLazy, 560 SolverSat, 115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 421.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1410.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51814occurred in iteration=0, InterpolantAutomatonStates: 124, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2193.9ms AutomataMinimizationTime, 11 MinimizatonAttempts, 21888 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 28.6ms SsaConstructionTime, 249.2ms SatisfiabilityAnalysisTime, 992.3ms InterpolantComputationTime, 678 NumberOfCodeBlocks, 678 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 667 ConstructedInterpolants, 0 QuantifiedInterpolants, 2671 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...