/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/safe001_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 00:16:05,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 00:16:05,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 00:16:05,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 00:16:05,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 00:16:05,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 00:16:05,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 00:16:05,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 00:16:05,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 00:16:05,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 00:16:05,477 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 00:16:05,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 00:16:05,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 00:16:05,499 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 00:16:05,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 00:16:05,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 00:16:05,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 00:16:05,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 00:16:05,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 00:16:05,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 00:16:05,520 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 [2021-07-14 00:16:05,559 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 00:16:05,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 00:16:05,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 00:16:05,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 00:16:05,563 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 00:16:05,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 00:16:05,563 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 00:16:05,563 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 00:16:05,563 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 00:16:05,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 00:16:05,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 00:16:05,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 00:16:05,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 00:16:05,565 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 00:16:05,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 00:16:05,565 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 00:16:05,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 00:16:05,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 00:16:05,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 00:16:05,566 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 00:16:05,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 00:16:05,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 00:16:05,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 00:16:05,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 00:16:05,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 00:16:05,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 00:16:05,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 00:16:05,567 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 00:16:05,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 00:16:05,567 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-14 00:16:05,567 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 00:16:05,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 00:16:05,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 00:16:05,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 00:16:05,904 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-14 00:16:05,904 INFO L275 PluginConnector]: CDTParser initialized [2021-07-14 00:16:05,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2021-07-14 00:16:05,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da90d78cf/b526eef0d04040a895fef2a585241c45/FLAG92f48d804 [2021-07-14 00:16:06,525 INFO L306 CDTParser]: Found 1 translation units. [2021-07-14 00:16:06,526 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2021-07-14 00:16:06,544 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da90d78cf/b526eef0d04040a895fef2a585241c45/FLAG92f48d804 [2021-07-14 00:16:06,969 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da90d78cf/b526eef0d04040a895fef2a585241c45 [2021-07-14 00:16:06,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 00:16:06,973 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-14 00:16:06,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-14 00:16:06,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-14 00:16:06,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-14 00:16:06,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:16:06" (1/1) ... [2021-07-14 00:16:06,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d2d205f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:06, skipping insertion in model container [2021-07-14 00:16:06,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:16:06" (1/1) ... [2021-07-14 00:16:06,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-14 00:16:07,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-14 00:16:07,153 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/safe001_tso.opt.i[949,962] [2021-07-14 00:16:07,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:16:07,367 INFO L203 MainTranslator]: Completed pre-run [2021-07-14 00:16:07,391 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/safe001_tso.opt.i[949,962] [2021-07-14 00:16:07,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:16:07,468 INFO L208 MainTranslator]: Completed translation [2021-07-14 00:16:07,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:07 WrapperNode [2021-07-14 00:16:07,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-14 00:16:07,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 00:16:07,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 00:16:07,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 00:16:07,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:07" (1/1) ... [2021-07-14 00:16:07,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:07" (1/1) ... [2021-07-14 00:16:07,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 00:16:07,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 00:16:07,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 00:16:07,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 00:16:07,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:07" (1/1) ... [2021-07-14 00:16:07,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:07" (1/1) ... [2021-07-14 00:16:07,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:07" (1/1) ... [2021-07-14 00:16:07,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:07" (1/1) ... [2021-07-14 00:16:07,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:07" (1/1) ... [2021-07-14 00:16:07,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:07" (1/1) ... [2021-07-14 00:16:07,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:07" (1/1) ... [2021-07-14 00:16:07,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 00:16:07,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 00:16:07,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 00:16:07,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 00:16:07,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:07" (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 [2021-07-14 00:16:07,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-14 00:16:07,644 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-14 00:16:07,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-14 00:16:07,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-14 00:16:07,645 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-14 00:16:07,645 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-14 00:16:07,646 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-14 00:16:07,646 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-14 00:16:07,646 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-14 00:16:07,646 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-14 00:16:07,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-14 00:16:07,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-14 00:16:07,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 00:16:07,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 00:16:07,648 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 00:16:08,048 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 00:16:08,048 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-14 00:16:08,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:16:08 BoogieIcfgContainer [2021-07-14 00:16:08,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 00:16:08,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 00:16:08,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 00:16:08,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 00:16:08,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:16:06" (1/3) ... [2021-07-14 00:16:08,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6902db8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:16:08, skipping insertion in model container [2021-07-14 00:16:08,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:16:07" (2/3) ... [2021-07-14 00:16:08,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6902db8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:16:08, skipping insertion in model container [2021-07-14 00:16:08,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:16:08" (3/3) ... [2021-07-14 00:16:08,058 INFO L111 eAbstractionObserver]: Analyzing ICFG safe001_tso.opt.i [2021-07-14 00:16:08,063 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 00:16:08,063 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 00:16:08,064 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 00:16:08,064 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 00:16:08,100 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,100 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,100 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,100 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,100 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,100 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,101 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,101 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,101 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,101 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,101 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,101 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,102 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,102 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,111 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,111 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,112 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,112 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,112 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,112 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,116 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,116 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,116 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,116 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,121 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,121 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,124 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,124 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,124 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,124 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:16:08,129 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-14 00:16:08,152 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-14 00:16:08,183 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 00:16:08,183 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 00:16:08,183 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 00:16:08,183 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 00:16:08,183 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 00:16:08,183 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 00:16:08,183 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 00:16:08,184 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 00:16:08,763 INFO L276 IsEmpty]: Start isEmpty. Operand has 5558 states, 4767 states have (on average 2.0612544577302288) internal successors, (9826), 5557 states have internal predecessors, (9826), 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) [2021-07-14 00:16:08,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-07-14 00:16:08,807 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:16:08,808 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:16:08,808 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:16:08,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:16:08,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1833038261, now seen corresponding path program 1 times [2021-07-14 00:16:08,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:16:08,821 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933257418] [2021-07-14 00:16:08,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:16:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:16:09,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:09,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:09,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:09,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:09,132 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:16:09,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:16:09,171 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:16:09,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:16:09,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:09,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:09,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:09,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:09,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:09,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:09,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:16:09,244 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:16:09,245 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933257418] [2021-07-14 00:16:09,245 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933257418] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:16:09,246 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:16:09,246 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:16:09,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874148471] [2021-07-14 00:16:09,250 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:16:09,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:16:09,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:16:09,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:16:09,278 INFO L87 Difference]: Start difference. First operand has 5558 states, 4767 states have (on average 2.0612544577302288) internal successors, (9826), 5557 states have internal predecessors, (9826), 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 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:16:09,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:16:09,671 INFO L93 Difference]: Finished difference Result 9296 states and 16398 transitions. [2021-07-14 00:16:09,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 00:16:09,675 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-07-14 00:16:09,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:16:09,715 INFO L225 Difference]: With dead ends: 9296 [2021-07-14 00:16:09,715 INFO L226 Difference]: Without dead ends: 2945 [2021-07-14 00:16:09,722 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 278.6ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:16:09,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2021-07-14 00:16:09,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 2375. [2021-07-14 00:16:09,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2375 states, 2326 states have (on average 2.188306104901118) internal successors, (5090), 2374 states have internal predecessors, (5090), 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) [2021-07-14 00:16:09,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2375 states to 2375 states and 5090 transitions. [2021-07-14 00:16:09,926 INFO L78 Accepts]: Start accepts. Automaton has 2375 states and 5090 transitions. Word has length 48 [2021-07-14 00:16:09,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:16:09,927 INFO L482 AbstractCegarLoop]: Abstraction has 2375 states and 5090 transitions. [2021-07-14 00:16:09,927 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:16:09,927 INFO L276 IsEmpty]: Start isEmpty. Operand 2375 states and 5090 transitions. [2021-07-14 00:16:09,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-07-14 00:16:09,932 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:16:09,933 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:16:09,933 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 00:16:09,933 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:16:09,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:16:09,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1569450626, now seen corresponding path program 1 times [2021-07-14 00:16:09,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:16:09,938 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075849474] [2021-07-14 00:16:09,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:16:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:16:10,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:10,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:10,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:10,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:10,077 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:16:10,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:16:10,094 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:16:10,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:16:10,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:10,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:10,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:10,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:10,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:10,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:10,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:16:10,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:16:10,141 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075849474] [2021-07-14 00:16:10,141 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075849474] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:16:10,141 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:16:10,141 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:16:10,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870361678] [2021-07-14 00:16:10,143 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:16:10,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:16:10,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:16:10,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:16:10,145 INFO L87 Difference]: Start difference. First operand 2375 states and 5090 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:16:10,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:16:10,423 INFO L93 Difference]: Finished difference Result 3301 states and 7479 transitions. [2021-07-14 00:16:10,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 00:16:10,424 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-07-14 00:16:10,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:16:10,439 INFO L225 Difference]: With dead ends: 3301 [2021-07-14 00:16:10,439 INFO L226 Difference]: Without dead ends: 2737 [2021-07-14 00:16:10,440 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 214.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:16:10,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2737 states. [2021-07-14 00:16:10,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2737 to 2183. [2021-07-14 00:16:10,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2183 states, 2140 states have (on average 2.21588785046729) internal successors, (4742), 2182 states have internal predecessors, (4742), 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) [2021-07-14 00:16:10,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 4742 transitions. [2021-07-14 00:16:10,512 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 4742 transitions. Word has length 51 [2021-07-14 00:16:10,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:16:10,513 INFO L482 AbstractCegarLoop]: Abstraction has 2183 states and 4742 transitions. [2021-07-14 00:16:10,513 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:16:10,513 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 4742 transitions. [2021-07-14 00:16:10,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-07-14 00:16:10,520 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:16:10,520 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:16:10,520 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 00:16:10,520 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:16:10,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:16:10,528 INFO L82 PathProgramCache]: Analyzing trace with hash -81709343, now seen corresponding path program 1 times [2021-07-14 00:16:10,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:16:10,528 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728383971] [2021-07-14 00:16:10,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:16:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:16:10,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:10,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:10,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:10,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:10,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:10,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:10,629 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:16:10,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:16:10,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:10,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:10,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:10,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:10,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:10,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:10,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:16:10,670 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:16:10,670 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728383971] [2021-07-14 00:16:10,670 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728383971] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:16:10,671 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:16:10,671 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:16:10,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766967406] [2021-07-14 00:16:10,671 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:16:10,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:16:10,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:16:10,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:16:10,672 INFO L87 Difference]: Start difference. First operand 2183 states and 4742 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:16:10,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:16:10,817 INFO L93 Difference]: Finished difference Result 2915 states and 6628 transitions. [2021-07-14 00:16:10,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 00:16:10,817 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-07-14 00:16:10,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:16:10,825 INFO L225 Difference]: With dead ends: 2915 [2021-07-14 00:16:10,825 INFO L226 Difference]: Without dead ends: 1529 [2021-07-14 00:16:10,826 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 86.9ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:16:10,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2021-07-14 00:16:10,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1529. [2021-07-14 00:16:10,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1529 states, 1501 states have (on average 2.2711525649566955) internal successors, (3409), 1528 states have internal predecessors, (3409), 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) [2021-07-14 00:16:10,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 3409 transitions. [2021-07-14 00:16:10,868 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 3409 transitions. Word has length 53 [2021-07-14 00:16:10,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:16:10,868 INFO L482 AbstractCegarLoop]: Abstraction has 1529 states and 3409 transitions. [2021-07-14 00:16:10,868 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:16:10,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 3409 transitions. [2021-07-14 00:16:10,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-07-14 00:16:10,871 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:16:10,872 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:16:10,872 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 00:16:10,872 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:16:10,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:16:10,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1468175589, now seen corresponding path program 1 times [2021-07-14 00:16:10,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:16:10,873 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655450548] [2021-07-14 00:16:10,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:16:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:16:10,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:10,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:10,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:10,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:10,917 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:16:10,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:16:10,928 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:16:10,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:16:10,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:10,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:10,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:10,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:10,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:10,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:10,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:16:10,965 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:16:10,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655450548] [2021-07-14 00:16:10,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655450548] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:16:10,965 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:16:10,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:16:10,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396482911] [2021-07-14 00:16:10,965 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:16:10,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:16:10,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:16:10,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:16:10,966 INFO L87 Difference]: Start difference. First operand 1529 states and 3409 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:16:11,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:16:11,162 INFO L93 Difference]: Finished difference Result 1947 states and 4468 transitions. [2021-07-14 00:16:11,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 00:16:11,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-07-14 00:16:11,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:16:11,170 INFO L225 Difference]: With dead ends: 1947 [2021-07-14 00:16:11,170 INFO L226 Difference]: Without dead ends: 1567 [2021-07-14 00:16:11,171 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 176.2ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:16:11,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2021-07-14 00:16:11,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1261. [2021-07-14 00:16:11,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1261 states, 1241 states have (on average 2.298146655922643) internal successors, (2852), 1260 states have internal predecessors, (2852), 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) [2021-07-14 00:16:11,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 2852 transitions. [2021-07-14 00:16:11,208 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 2852 transitions. Word has length 54 [2021-07-14 00:16:11,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:16:11,208 INFO L482 AbstractCegarLoop]: Abstraction has 1261 states and 2852 transitions. [2021-07-14 00:16:11,208 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:16:11,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 2852 transitions. [2021-07-14 00:16:11,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-07-14 00:16:11,211 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:16:11,211 INFO L508 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] [2021-07-14 00:16:11,211 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-14 00:16:11,212 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:16:11,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:16:11,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1018282834, now seen corresponding path program 1 times [2021-07-14 00:16:11,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:16:11,212 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027380628] [2021-07-14 00:16:11,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:16:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:16:11,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:11,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:11,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:11,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:11,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:11,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:11,289 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:16:11,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:16:11,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:11,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:11,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:11,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:11,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:11,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:11,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:16:11,337 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:16:11,337 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027380628] [2021-07-14 00:16:11,337 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027380628] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:16:11,337 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:16:11,337 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:16:11,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652266375] [2021-07-14 00:16:11,338 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:16:11,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:16:11,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:16:11,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:16:11,339 INFO L87 Difference]: Start difference. First operand 1261 states and 2852 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:16:11,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:16:11,481 INFO L93 Difference]: Finished difference Result 1981 states and 4433 transitions. [2021-07-14 00:16:11,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 00:16:11,481 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 [2021-07-14 00:16:11,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:16:11,487 INFO L225 Difference]: With dead ends: 1981 [2021-07-14 00:16:11,487 INFO L226 Difference]: Without dead ends: 1127 [2021-07-14 00:16:11,488 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 165.6ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-14 00:16:11,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2021-07-14 00:16:11,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2021-07-14 00:16:11,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1127 states, 1107 states have (on average 2.160794941282746) internal successors, (2392), 1126 states have internal predecessors, (2392), 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) [2021-07-14 00:16:11,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 2392 transitions. [2021-07-14 00:16:11,520 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 2392 transitions. Word has length 55 [2021-07-14 00:16:11,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:16:11,520 INFO L482 AbstractCegarLoop]: Abstraction has 1127 states and 2392 transitions. [2021-07-14 00:16:11,520 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) [2021-07-14 00:16:11,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 2392 transitions. [2021-07-14 00:16:11,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-07-14 00:16:11,523 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:16:11,523 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:16:11,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-14 00:16:11,524 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:16:11,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:16:11,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1241171024, now seen corresponding path program 1 times [2021-07-14 00:16:11,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:16:11,525 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516837759] [2021-07-14 00:16:11,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:16:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:16:11,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:11,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:11,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:11,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:11,574 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:16:11,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:16:11,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:11,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:16:11,603 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:16:11,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:11,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:11,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:11,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:16:11,614 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:16:11,614 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516837759] [2021-07-14 00:16:11,614 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516837759] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:16:11,615 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:16:11,615 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 00:16:11,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566698345] [2021-07-14 00:16:11,615 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 00:16:11,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:16:11,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 00:16:11,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-14 00:16:11,618 INFO L87 Difference]: Start difference. First operand 1127 states and 2392 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:16:11,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:16:11,724 INFO L93 Difference]: Finished difference Result 1545 states and 3197 transitions. [2021-07-14 00:16:11,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 00:16:11,725 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-07-14 00:16:11,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:16:11,730 INFO L225 Difference]: With dead ends: 1545 [2021-07-14 00:16:11,730 INFO L226 Difference]: Without dead ends: 1005 [2021-07-14 00:16:11,730 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 85.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:16:11,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2021-07-14 00:16:11,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 1005. [2021-07-14 00:16:11,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 985 states have (on average 2.166497461928934) internal successors, (2134), 1004 states have internal predecessors, (2134), 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) [2021-07-14 00:16:11,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 2134 transitions. [2021-07-14 00:16:11,754 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 2134 transitions. Word has length 56 [2021-07-14 00:16:11,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:16:11,754 INFO L482 AbstractCegarLoop]: Abstraction has 1005 states and 2134 transitions. [2021-07-14 00:16:11,754 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:16:11,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 2134 transitions. [2021-07-14 00:16:11,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-07-14 00:16:11,756 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:16:11,757 INFO L508 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] [2021-07-14 00:16:11,757 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-14 00:16:11,757 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:16:11,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:16:11,757 INFO L82 PathProgramCache]: Analyzing trace with hash 502949247, now seen corresponding path program 1 times [2021-07-14 00:16:11,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:16:11,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918123997] [2021-07-14 00:16:11,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:16:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:16:11,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:11,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:11,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:11,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:11,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:11,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:11,816 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:16:11,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:16:11,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:11,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:16:11,842 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:16:11,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:11,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:11,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:11,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:16:11,852 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:16:11,852 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918123997] [2021-07-14 00:16:11,852 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918123997] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:16:11,852 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:16:11,852 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:16:11,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800668913] [2021-07-14 00:16:11,854 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:16:11,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:16:11,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:16:11,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:16:11,855 INFO L87 Difference]: Start difference. First operand 1005 states and 2134 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) [2021-07-14 00:16:11,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:16:11,993 INFO L93 Difference]: Finished difference Result 1092 states and 2217 transitions. [2021-07-14 00:16:11,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 00:16:11,993 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 [2021-07-14 00:16:11,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:16:11,996 INFO L225 Difference]: With dead ends: 1092 [2021-07-14 00:16:11,996 INFO L226 Difference]: Without dead ends: 638 [2021-07-14 00:16:11,997 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 111.8ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-14 00:16:11,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2021-07-14 00:16:12,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 638. [2021-07-14 00:16:12,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 620 states have (on average 2.1032258064516127) internal successors, (1304), 637 states have internal predecessors, (1304), 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) [2021-07-14 00:16:12,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 1304 transitions. [2021-07-14 00:16:12,013 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 1304 transitions. Word has length 57 [2021-07-14 00:16:12,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:16:12,013 INFO L482 AbstractCegarLoop]: Abstraction has 638 states and 1304 transitions. [2021-07-14 00:16:12,014 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) [2021-07-14 00:16:12,014 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 1304 transitions. [2021-07-14 00:16:12,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-07-14 00:16:12,015 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:16:12,015 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:16:12,015 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-14 00:16:12,016 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:16:12,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:16:12,016 INFO L82 PathProgramCache]: Analyzing trace with hash -664261444, now seen corresponding path program 1 times [2021-07-14 00:16:12,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:16:12,016 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507805141] [2021-07-14 00:16:12,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:16:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:16:12,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:12,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:12,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:12,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:12,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:12,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:12,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:12,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:12,077 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:16:12,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:16:12,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:12,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:16:12,104 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:16:12,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:12,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:12,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:12,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:16:12,116 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:16:12,116 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507805141] [2021-07-14 00:16:12,116 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507805141] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:16:12,116 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:16:12,117 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:16:12,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483027872] [2021-07-14 00:16:12,117 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:16:12,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:16:12,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:16:12,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:16:12,118 INFO L87 Difference]: Start difference. First operand 638 states and 1304 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:16:12,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:16:12,280 INFO L93 Difference]: Finished difference Result 503 states and 941 transitions. [2021-07-14 00:16:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 00:16:12,281 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-07-14 00:16:12,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:16:12,282 INFO L225 Difference]: With dead ends: 503 [2021-07-14 00:16:12,282 INFO L226 Difference]: Without dead ends: 247 [2021-07-14 00:16:12,283 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 126.4ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:16:12,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-07-14 00:16:12,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2021-07-14 00:16:12,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 238 states have (on average 1.7899159663865547) internal successors, (426), 246 states have internal predecessors, (426), 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) [2021-07-14 00:16:12,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 426 transitions. [2021-07-14 00:16:12,289 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 426 transitions. Word has length 58 [2021-07-14 00:16:12,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:16:12,289 INFO L482 AbstractCegarLoop]: Abstraction has 247 states and 426 transitions. [2021-07-14 00:16:12,289 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:16:12,290 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 426 transitions. [2021-07-14 00:16:12,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-14 00:16:12,290 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:16:12,290 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:16:12,291 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-14 00:16:12,291 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:16:12,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:16:12,291 INFO L82 PathProgramCache]: Analyzing trace with hash 189610569, now seen corresponding path program 1 times [2021-07-14 00:16:12,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:16:12,292 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909320488] [2021-07-14 00:16:12,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:16:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:16:12,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:12,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:12,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:12,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:12,370 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:16:12,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:16:12,382 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:16:12,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:16:12,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:12,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:12,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:12,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:12,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:12,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:12,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:16:12,420 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:16:12,420 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909320488] [2021-07-14 00:16:12,420 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909320488] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:16:12,420 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:16:12,420 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:16:12,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564802078] [2021-07-14 00:16:12,421 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:16:12,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:16:12,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:16:12,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:16:12,422 INFO L87 Difference]: Start difference. First operand 247 states and 426 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:16:12,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:16:12,493 INFO L93 Difference]: Finished difference Result 405 states and 733 transitions. [2021-07-14 00:16:12,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 00:16:12,494 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-07-14 00:16:12,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:16:12,495 INFO L225 Difference]: With dead ends: 405 [2021-07-14 00:16:12,495 INFO L226 Difference]: Without dead ends: 242 [2021-07-14 00:16:12,496 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 77.5ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-07-14 00:16:12,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-07-14 00:16:12,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-07-14 00:16:12,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 233 states have (on average 1.793991416309013) internal successors, (418), 241 states have internal predecessors, (418), 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) [2021-07-14 00:16:12,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 418 transitions. [2021-07-14 00:16:12,502 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 418 transitions. Word has length 60 [2021-07-14 00:16:12,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:16:12,502 INFO L482 AbstractCegarLoop]: Abstraction has 242 states and 418 transitions. [2021-07-14 00:16:12,502 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:16:12,502 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 418 transitions. [2021-07-14 00:16:12,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-14 00:16:12,503 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:16:12,503 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:16:12,503 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-14 00:16:12,503 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:16:12,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:16:12,504 INFO L82 PathProgramCache]: Analyzing trace with hash 97419103, now seen corresponding path program 2 times [2021-07-14 00:16:12,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:16:12,504 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134164891] [2021-07-14 00:16:12,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:16:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:16:12,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:12,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:12,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:12,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:12,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:12,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:16:12,548 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:16:12,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:16:12,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:12,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:12,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:12,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:16:12,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:16:12,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:16:12,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:16:12,585 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:16:12,585 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134164891] [2021-07-14 00:16:12,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134164891] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:16:12,585 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:16:12,585 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:16:12,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924278744] [2021-07-14 00:16:12,586 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:16:12,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:16:12,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:16:12,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:16:12,587 INFO L87 Difference]: Start difference. First operand 242 states and 418 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:16:12,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:16:12,650 INFO L93 Difference]: Finished difference Result 206 states and 358 transitions. [2021-07-14 00:16:12,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 00:16:12,650 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-07-14 00:16:12,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:16:12,651 INFO L225 Difference]: With dead ends: 206 [2021-07-14 00:16:12,651 INFO L226 Difference]: Without dead ends: 0 [2021-07-14 00:16:12,651 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 81.9ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:16:12,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-14 00:16:12,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-14 00:16:12,651 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) [2021-07-14 00:16:12,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-14 00:16:12,652 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2021-07-14 00:16:12,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:16:12,652 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-14 00:16:12,652 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:16:12,652 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-14 00:16:12,652 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-14 00:16:12,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-14 00:16:12,654 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-14 00:16:12,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 12:16:12 BasicIcfg [2021-07-14 00:16:12,656 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-14 00:16:12,656 INFO L168 Benchmark]: Toolchain (without parser) took 5683.10 ms. Allocated memory was 191.9 MB in the beginning and 361.8 MB in the end (delta: 169.9 MB). Free memory was 154.4 MB in the beginning and 176.5 MB in the end (delta: -22.0 MB). Peak memory consumption was 148.7 MB. Max. memory is 8.0 GB. [2021-07-14 00:16:12,657 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 191.9 MB. Free memory was 173.2 MB in the beginning and 173.1 MB in the end (delta: 85.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 00:16:12,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 495.92 ms. Allocated memory is still 191.9 MB. Free memory was 154.3 MB in the beginning and 167.5 MB in the end (delta: -13.2 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. [2021-07-14 00:16:12,657 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.24 ms. Allocated memory is still 191.9 MB. Free memory was 167.5 MB in the beginning and 165.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-14 00:16:12,657 INFO L168 Benchmark]: Boogie Preprocessor took 31.20 ms. Allocated memory is still 191.9 MB. Free memory was 165.5 MB in the beginning and 164.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 00:16:12,658 INFO L168 Benchmark]: RCFGBuilder took 484.08 ms. Allocated memory is still 191.9 MB. Free memory was 164.0 MB in the beginning and 140.4 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-07-14 00:16:12,658 INFO L168 Benchmark]: TraceAbstraction took 4603.45 ms. Allocated memory was 191.9 MB in the beginning and 361.8 MB in the end (delta: 169.9 MB). Free memory was 139.8 MB in the beginning and 176.5 MB in the end (delta: -36.6 MB). Peak memory consumption was 134.3 MB. Max. memory is 8.0 GB. [2021-07-14 00:16:12,659 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 191.9 MB. Free memory was 173.2 MB in the beginning and 173.1 MB in the end (delta: 85.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 495.92 ms. Allocated memory is still 191.9 MB. Free memory was 154.3 MB in the beginning and 167.5 MB in the end (delta: -13.2 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 63.24 ms. Allocated memory is still 191.9 MB. Free memory was 167.5 MB in the beginning and 165.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.20 ms. Allocated memory is still 191.9 MB. Free memory was 165.5 MB in the beginning and 164.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 484.08 ms. Allocated memory is still 191.9 MB. Free memory was 164.0 MB in the beginning and 140.4 MB in the end (delta: 23.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4603.45 ms. Allocated memory was 191.9 MB in the beginning and 361.8 MB in the end (delta: 169.9 MB). Free memory was 139.8 MB in the beginning and 176.5 MB in the end (delta: -36.6 MB). Peak memory consumption was 134.3 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: 18605, positive: 17801, positive conditional: 17801, positive unconditional: 0, negative: 804, negative conditional: 804, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18524, positive: 17801, positive conditional: 0, positive unconditional: 17801, negative: 723, negative conditional: 0, negative unconditional: 723, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 643, positive: 622, positive conditional: 0, positive unconditional: 622, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 643, positive: 619, positive conditional: 0, positive unconditional: 619, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 24, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 74, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18524, positive: 17179, positive conditional: 0, positive unconditional: 17179, negative: 702, negative conditional: 0, negative unconditional: 702, unknown: 643, unknown conditional: 0, unknown unconditional: 643] , Statistics on independence cache: Total cache size (in pairs): 643, Positive cache size: 622, Positive conditional cache size: 0, Positive unconditional cache size: 622, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Independence queries for same thread: 81 - 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 7 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4472.0ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 87.2ms, AutomataDifference: 1838.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 561.4ms, PartialOrderReductionTime: 538.3ms, HoareTripleCheckerStatistics: 928 SDtfs, 1220 SDslu, 3101 SDs, 0 SdLazy, 421 SolverSat, 80 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 355.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1405.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5558occurred in iteration=0, InterpolantAutomatonStates: 101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 422.1ms AutomataMinimizationTime, 10 MinimizatonAttempts, 1430 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 28.7ms SsaConstructionTime, 199.0ms SatisfiabilityAnalysisTime, 1135.3ms InterpolantComputationTime, 552 NumberOfCodeBlocks, 552 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 542 ConstructedInterpolants, 0 QuantifiedInterpolants, 2010 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...