/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/safe019_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 00:18:24,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 00:18:24,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 00:18:24,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 00:18:24,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 00:18:24,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 00:18:24,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 00:18:24,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 00:18:24,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 00:18:24,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 00:18:24,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 00:18:24,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 00:18:24,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 00:18:24,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 00:18:24,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 00:18:24,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 00:18:24,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 00:18:24,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 00:18:24,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 00:18:24,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 00:18:24,954 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 00:18:24,984 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 00:18:24,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 00:18:24,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 00:18:24,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 00:18:24,987 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 00:18:24,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 00:18:24,988 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 00:18:24,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 00:18:24,988 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 00:18:24,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 00:18:24,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 00:18:24,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 00:18:24,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 00:18:24,989 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 00:18:24,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 00:18:24,989 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 00:18:24,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 00:18:24,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 00:18:24,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 00:18:24,990 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 00:18:24,990 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 00:18:24,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 00:18:24,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 00:18:24,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 00:18:24,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 00:18:24,991 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 00:18:24,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 00:18:24,991 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 00:18:24,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 00:18:24,992 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-14 00:18:24,992 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 00:18:25,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 00:18:25,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 00:18:25,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 00:18:25,330 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-14 00:18:25,332 INFO L275 PluginConnector]: CDTParser initialized [2021-07-14 00:18:25,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2021-07-14 00:18:25,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd3483a30/ed87892e152049d896f65b8eb36382ad/FLAG71c0691ea [2021-07-14 00:18:25,898 INFO L306 CDTParser]: Found 1 translation units. [2021-07-14 00:18:25,898 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2021-07-14 00:18:25,916 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd3483a30/ed87892e152049d896f65b8eb36382ad/FLAG71c0691ea [2021-07-14 00:18:26,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd3483a30/ed87892e152049d896f65b8eb36382ad [2021-07-14 00:18:26,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 00:18:26,209 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-14 00:18:26,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-14 00:18:26,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-14 00:18:26,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-14 00:18:26,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:18:26" (1/1) ... [2021-07-14 00:18:26,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@291054ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:26, skipping insertion in model container [2021-07-14 00:18:26,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:18:26" (1/1) ... [2021-07-14 00:18:26,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-14 00:18:26,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-14 00:18:26,367 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/safe019_tso.opt.i[949,962] [2021-07-14 00:18:26,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:18:26,591 INFO L203 MainTranslator]: Completed pre-run [2021-07-14 00:18:26,601 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/safe019_tso.opt.i[949,962] [2021-07-14 00:18:26,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:18:26,691 INFO L208 MainTranslator]: Completed translation [2021-07-14 00:18:26,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:26 WrapperNode [2021-07-14 00:18:26,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-14 00:18:26,693 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 00:18:26,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 00:18:26,694 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 00:18:26,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:26" (1/1) ... [2021-07-14 00:18:26,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:26" (1/1) ... [2021-07-14 00:18:26,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 00:18:26,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 00:18:26,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 00:18:26,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 00:18:26,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:26" (1/1) ... [2021-07-14 00:18:26,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:26" (1/1) ... [2021-07-14 00:18:26,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:26" (1/1) ... [2021-07-14 00:18:26,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:26" (1/1) ... [2021-07-14 00:18:26,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:26" (1/1) ... [2021-07-14 00:18:26,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:26" (1/1) ... [2021-07-14 00:18:26,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:26" (1/1) ... [2021-07-14 00:18:26,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 00:18:26,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 00:18:26,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 00:18:26,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 00:18:26,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:26" (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 00:18:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-14 00:18:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-14 00:18:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-14 00:18:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-14 00:18:26,861 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-14 00:18:26,861 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-14 00:18:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-14 00:18:26,862 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-14 00:18:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-14 00:18:26,862 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-14 00:18:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-07-14 00:18:26,863 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-07-14 00:18:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-14 00:18:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-14 00:18:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 00:18:26,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 00:18:26,867 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 00:18:27,230 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 00:18:27,230 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-14 00:18:27,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:18:27 BoogieIcfgContainer [2021-07-14 00:18:27,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 00:18:27,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 00:18:27,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 00:18:27,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 00:18:27,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:18:26" (1/3) ... [2021-07-14 00:18:27,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a2922f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:18:27, skipping insertion in model container [2021-07-14 00:18:27,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:26" (2/3) ... [2021-07-14 00:18:27,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a2922f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:18:27, skipping insertion in model container [2021-07-14 00:18:27,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:18:27" (3/3) ... [2021-07-14 00:18:27,239 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.opt.i [2021-07-14 00:18:27,244 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 00:18:27,244 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 00:18:27,244 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 00:18:27,245 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 00:18:27,271 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,271 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,271 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,271 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,272 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,272 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,273 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,273 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,273 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,273 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,274 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,274 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,274 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,274 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,274 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,274 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,274 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,275 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,275 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,275 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,275 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,275 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,275 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,276 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,276 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,276 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,276 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,276 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,276 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,277 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,277 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,277 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,277 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,277 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,277 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,277 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,277 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,278 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,278 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,278 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,278 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,278 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,280 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,281 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,281 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,281 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,285 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,285 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,287 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,287 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,289 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,289 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,289 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,289 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:18:27,291 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-14 00:18:27,311 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-07-14 00:18:27,327 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 00:18:27,328 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 00:18:27,328 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 00:18:27,328 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 00:18:27,328 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 00:18:27,328 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 00:18:27,328 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 00:18:27,328 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 00:18:29,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 28883 states, 24123 states have (on average 2.1884094018156945) internal successors, (52791), 28882 states have internal predecessors, (52791), 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 00:18:29,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-07-14 00:18:29,576 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:29,577 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 00:18:29,577 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:29,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:29,582 INFO L82 PathProgramCache]: Analyzing trace with hash -352002722, now seen corresponding path program 1 times [2021-07-14 00:18:29,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:29,590 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663965748] [2021-07-14 00:18:29,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:30,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:30,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:30,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:30,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:30,053 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:18:30,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:18:30,065 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:30,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:30,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:30,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:30,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:30,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:30,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:30,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:30,104 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 00:18:30,105 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:30,105 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663965748] [2021-07-14 00:18:30,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663965748] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:30,106 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:30,106 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:18:30,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49063387] [2021-07-14 00:18:30,109 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:18:30,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:30,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:18:30,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:18:30,173 INFO L87 Difference]: Start difference. First operand has 28883 states, 24123 states have (on average 2.1884094018156945) internal successors, (52791), 28882 states have internal predecessors, (52791), 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 8.0) internal successors, (56), 7 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 00:18:30,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:30,977 INFO L93 Difference]: Finished difference Result 47435 states and 88902 transitions. [2021-07-14 00:18:30,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 00:18:30,978 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 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 00:18:30,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:31,130 INFO L225 Difference]: With dead ends: 47435 [2021-07-14 00:18:31,130 INFO L226 Difference]: Without dead ends: 16011 [2021-07-14 00:18:31,131 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 175.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:18:31,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16011 states. [2021-07-14 00:18:31,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16011 to 11811. [2021-07-14 00:18:31,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11811 states, 11601 states have (on average 2.490992155848634) internal successors, (28898), 11810 states have internal predecessors, (28898), 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 00:18:31,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11811 states to 11811 states and 28898 transitions. [2021-07-14 00:18:31,752 INFO L78 Accepts]: Start accepts. Automaton has 11811 states and 28898 transitions. Word has length 56 [2021-07-14 00:18:31,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:31,753 INFO L482 AbstractCegarLoop]: Abstraction has 11811 states and 28898 transitions. [2021-07-14 00:18:31,753 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 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 00:18:31,753 INFO L276 IsEmpty]: Start isEmpty. Operand 11811 states and 28898 transitions. [2021-07-14 00:18:31,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-07-14 00:18:31,765 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:31,765 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 00:18:31,765 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 00:18:31,765 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:31,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:31,766 INFO L82 PathProgramCache]: Analyzing trace with hash -591376929, now seen corresponding path program 1 times [2021-07-14 00:18:31,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:31,766 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974379114] [2021-07-14 00:18:31,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:31,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:31,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:31,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:31,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:31,883 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:18:31,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:18:31,893 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:31,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:31,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:31,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:31,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:31,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:31,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:31,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:31,927 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 00:18:31,927 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:31,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974379114] [2021-07-14 00:18:31,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974379114] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:31,928 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:31,928 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:18:31,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549789796] [2021-07-14 00:18:31,929 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:18:31,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:31,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:18:31,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:18:31,932 INFO L87 Difference]: Start difference. First operand 11811 states and 28898 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 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 00:18:32,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:32,366 INFO L93 Difference]: Finished difference Result 19683 states and 48199 transitions. [2021-07-14 00:18:32,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 00:18:32,367 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 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 00:18:32,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:32,441 INFO L225 Difference]: With dead ends: 19683 [2021-07-14 00:18:32,441 INFO L226 Difference]: Without dead ends: 13731 [2021-07-14 00:18:32,442 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 175.2ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:18:32,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13731 states. [2021-07-14 00:18:32,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13731 to 9387. [2021-07-14 00:18:32,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9387 states, 9237 states have (on average 2.5079571289379667) internal successors, (23166), 9386 states have internal predecessors, (23166), 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 00:18:32,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9387 states to 9387 states and 23166 transitions. [2021-07-14 00:18:32,877 INFO L78 Accepts]: Start accepts. Automaton has 9387 states and 23166 transitions. Word has length 58 [2021-07-14 00:18:32,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:32,878 INFO L482 AbstractCegarLoop]: Abstraction has 9387 states and 23166 transitions. [2021-07-14 00:18:32,878 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 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 00:18:32,878 INFO L276 IsEmpty]: Start isEmpty. Operand 9387 states and 23166 transitions. [2021-07-14 00:18:32,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-14 00:18:32,896 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:32,896 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 00:18:32,896 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 00:18:32,896 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:32,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:32,897 INFO L82 PathProgramCache]: Analyzing trace with hash 166927232, now seen corresponding path program 1 times [2021-07-14 00:18:32,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:32,897 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053367027] [2021-07-14 00:18:32,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:33,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:33,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:33,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:33,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:33,007 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:18:33,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:18:33,027 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:33,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:33,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:33,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:33,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:33,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:33,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:33,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:33,073 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 00:18:33,073 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:33,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053367027] [2021-07-14 00:18:33,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053367027] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:33,074 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:33,074 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:18:33,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871055196] [2021-07-14 00:18:33,075 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:18:33,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:33,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:18:33,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:18:33,077 INFO L87 Difference]: Start difference. First operand 9387 states and 23166 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 00:18:33,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:33,486 INFO L93 Difference]: Finished difference Result 17739 states and 43777 transitions. [2021-07-14 00:18:33,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 00:18:33,487 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 00:18:33,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:33,636 INFO L225 Difference]: With dead ends: 17739 [2021-07-14 00:18:33,636 INFO L226 Difference]: Without dead ends: 13419 [2021-07-14 00:18:33,637 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 258.1ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-07-14 00:18:33,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13419 states. [2021-07-14 00:18:33,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13419 to 9337. [2021-07-14 00:18:33,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9337 states, 9187 states have (on average 2.5168172417546533) internal successors, (23122), 9336 states have internal predecessors, (23122), 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 00:18:33,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9337 states to 9337 states and 23122 transitions. [2021-07-14 00:18:33,903 INFO L78 Accepts]: Start accepts. Automaton has 9337 states and 23122 transitions. Word has length 60 [2021-07-14 00:18:33,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:33,903 INFO L482 AbstractCegarLoop]: Abstraction has 9337 states and 23122 transitions. [2021-07-14 00:18:33,904 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 00:18:33,904 INFO L276 IsEmpty]: Start isEmpty. Operand 9337 states and 23122 transitions. [2021-07-14 00:18:33,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-07-14 00:18:33,984 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:33,984 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, 1] [2021-07-14 00:18:33,984 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 00:18:33,984 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:33,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:33,985 INFO L82 PathProgramCache]: Analyzing trace with hash 330256253, now seen corresponding path program 1 times [2021-07-14 00:18:33,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:33,985 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892148165] [2021-07-14 00:18:33,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:34,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:34,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:34,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:34,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:34,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:34,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:34,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:34,083 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:18:34,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:18:34,092 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:34,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:34,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:34,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:34,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:34,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:34,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:34,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:34,128 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 00:18:34,128 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:34,129 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892148165] [2021-07-14 00:18:34,129 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892148165] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:34,129 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:34,129 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:18:34,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667698209] [2021-07-14 00:18:34,129 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:18:34,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:34,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:18:34,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:18:34,130 INFO L87 Difference]: Start difference. First operand 9337 states and 23122 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:34,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:34,336 INFO L93 Difference]: Finished difference Result 16423 states and 40762 transitions. [2021-07-14 00:18:34,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 00:18:34,337 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-07-14 00:18:34,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:34,371 INFO L225 Difference]: With dead ends: 16423 [2021-07-14 00:18:34,372 INFO L226 Difference]: Without dead ends: 9399 [2021-07-14 00:18:34,372 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 113.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:18:34,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9399 states. [2021-07-14 00:18:34,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9399 to 6503. [2021-07-14 00:18:34,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6503 states, 6403 states have (on average 2.555052319225363) internal successors, (16360), 6502 states have internal predecessors, (16360), 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 00:18:34,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6503 states to 6503 states and 16360 transitions. [2021-07-14 00:18:34,559 INFO L78 Accepts]: Start accepts. Automaton has 6503 states and 16360 transitions. Word has length 61 [2021-07-14 00:18:34,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:34,560 INFO L482 AbstractCegarLoop]: Abstraction has 6503 states and 16360 transitions. [2021-07-14 00:18:34,560 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:34,560 INFO L276 IsEmpty]: Start isEmpty. Operand 6503 states and 16360 transitions. [2021-07-14 00:18:34,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-14 00:18:34,569 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:34,570 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, 1, 1] [2021-07-14 00:18:34,570 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-14 00:18:34,570 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:34,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:34,571 INFO L82 PathProgramCache]: Analyzing trace with hash 182690881, now seen corresponding path program 1 times [2021-07-14 00:18:34,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:34,571 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370129552] [2021-07-14 00:18:34,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:34,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:34,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:34,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:34,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:34,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:34,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:34,624 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:18:34,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:18:34,634 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:34,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:34,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:34,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:34,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:34,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:34,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:34,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:34,757 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 00:18:34,757 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:34,757 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370129552] [2021-07-14 00:18:34,757 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370129552] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:34,757 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:34,757 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:18:34,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003443279] [2021-07-14 00:18:34,758 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:18:34,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:34,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:18:34,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:18:34,759 INFO L87 Difference]: Start difference. First operand 6503 states and 16360 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:34,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:34,923 INFO L93 Difference]: Finished difference Result 11341 states and 29726 transitions. [2021-07-14 00:18:34,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 00:18:34,924 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-07-14 00:18:34,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:34,946 INFO L225 Difference]: With dead ends: 11341 [2021-07-14 00:18:34,946 INFO L226 Difference]: Without dead ends: 6423 [2021-07-14 00:18:34,947 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 197.1ms TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:18:34,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6423 states. [2021-07-14 00:18:35,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6423 to 5303. [2021-07-14 00:18:35,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5203 states have (on average 2.581779742456275) internal successors, (13433), 5302 states have internal predecessors, (13433), 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 00:18:35,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13433 transitions. [2021-07-14 00:18:35,071 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13433 transitions. Word has length 62 [2021-07-14 00:18:35,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:35,071 INFO L482 AbstractCegarLoop]: Abstraction has 5303 states and 13433 transitions. [2021-07-14 00:18:35,072 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:35,072 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13433 transitions. [2021-07-14 00:18:35,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-07-14 00:18:35,079 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:35,079 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, 1, 1, 1] [2021-07-14 00:18:35,079 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-14 00:18:35,079 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:35,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:35,080 INFO L82 PathProgramCache]: Analyzing trace with hash 846472638, now seen corresponding path program 1 times [2021-07-14 00:18:35,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:35,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155828572] [2021-07-14 00:18:35,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:35,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:35,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:35,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:35,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:35,115 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:18:35,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:18:35,123 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:35,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:35,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:35,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:35,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:35,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:35,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:35,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:35,152 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 00:18:35,152 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:35,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155828572] [2021-07-14 00:18:35,153 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155828572] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:35,153 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:35,153 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:18:35,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454838556] [2021-07-14 00:18:35,153 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:18:35,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:35,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:18:35,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:18:35,154 INFO L87 Difference]: Start difference. First operand 5303 states and 13433 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:35,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:35,289 INFO L93 Difference]: Finished difference Result 8439 states and 24154 transitions. [2021-07-14 00:18:35,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 00:18:35,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-07-14 00:18:35,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:35,307 INFO L225 Difference]: With dead ends: 8439 [2021-07-14 00:18:35,307 INFO L226 Difference]: Without dead ends: 5367 [2021-07-14 00:18:35,307 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 86.2ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-14 00:18:35,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5367 states. [2021-07-14 00:18:35,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5367 to 4247. [2021-07-14 00:18:35,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4247 states, 4147 states have (on average 2.7171449240414756) internal successors, (11268), 4246 states have internal predecessors, (11268), 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 00:18:35,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4247 states to 4247 states and 11268 transitions. [2021-07-14 00:18:35,517 INFO L78 Accepts]: Start accepts. Automaton has 4247 states and 11268 transitions. Word has length 63 [2021-07-14 00:18:35,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:35,517 INFO L482 AbstractCegarLoop]: Abstraction has 4247 states and 11268 transitions. [2021-07-14 00:18:35,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:35,517 INFO L276 IsEmpty]: Start isEmpty. Operand 4247 states and 11268 transitions. [2021-07-14 00:18:35,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-07-14 00:18:35,525 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:35,525 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, 1, 1, 1, 1] [2021-07-14 00:18:35,525 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-14 00:18:35,525 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:35,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:35,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1420739396, now seen corresponding path program 1 times [2021-07-14 00:18:35,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:35,526 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391664450] [2021-07-14 00:18:35,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:35,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:35,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:35,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:35,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:35,569 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:18:35,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:18:35,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:35,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:18:35,595 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:18:35,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:35,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:35,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:35,604 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 00:18:35,604 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:35,604 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391664450] [2021-07-14 00:18:35,605 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391664450] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:35,606 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:35,606 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 00:18:35,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183021645] [2021-07-14 00:18:35,607 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 00:18:35,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:35,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 00:18:35,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-14 00:18:35,608 INFO L87 Difference]: Start difference. First operand 4247 states and 11268 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:35,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:35,732 INFO L93 Difference]: Finished difference Result 5951 states and 15296 transitions. [2021-07-14 00:18:35,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 00:18:35,733 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-07-14 00:18:35,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:35,746 INFO L225 Difference]: With dead ends: 5951 [2021-07-14 00:18:35,746 INFO L226 Difference]: Without dead ends: 4083 [2021-07-14 00:18:35,747 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 79.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:18:35,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4083 states. [2021-07-14 00:18:35,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4083 to 4083. [2021-07-14 00:18:35,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4083 states, 3983 states have (on average 2.733868943007783) internal successors, (10889), 4082 states have internal predecessors, (10889), 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 00:18:35,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4083 states to 4083 states and 10889 transitions. [2021-07-14 00:18:35,858 INFO L78 Accepts]: Start accepts. Automaton has 4083 states and 10889 transitions. Word has length 64 [2021-07-14 00:18:35,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:35,858 INFO L482 AbstractCegarLoop]: Abstraction has 4083 states and 10889 transitions. [2021-07-14 00:18:35,858 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:35,858 INFO L276 IsEmpty]: Start isEmpty. Operand 4083 states and 10889 transitions. [2021-07-14 00:18:35,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-07-14 00:18:35,865 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:35,865 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, 1, 1, 1, 1, 1] [2021-07-14 00:18:35,866 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-14 00:18:35,866 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:35,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:35,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1040855314, now seen corresponding path program 1 times [2021-07-14 00:18:35,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:35,867 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535541289] [2021-07-14 00:18:35,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:35,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:35,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:35,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:35,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:35,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:35,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:35,913 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:18:35,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:18:35,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:35,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:18:35,935 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:18:35,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:35,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:35,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:35,944 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 00:18:35,944 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:35,944 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535541289] [2021-07-14 00:18:35,944 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535541289] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:35,944 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:35,944 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:18:35,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438379570] [2021-07-14 00:18:35,945 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:18:35,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:35,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:18:35,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:18:35,946 INFO L87 Difference]: Start difference. First operand 4083 states and 10889 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:36,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:36,076 INFO L93 Difference]: Finished difference Result 5118 states and 13114 transitions. [2021-07-14 00:18:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 00:18:36,077 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-07-14 00:18:36,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:36,087 INFO L225 Difference]: With dead ends: 5118 [2021-07-14 00:18:36,087 INFO L226 Difference]: Without dead ends: 3358 [2021-07-14 00:18:36,087 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 85.9ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-14 00:18:36,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3358 states. [2021-07-14 00:18:36,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3358 to 3358. [2021-07-14 00:18:36,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3358 states, 3262 states have (on average 2.7265481299816066) internal successors, (8894), 3357 states have internal predecessors, (8894), 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 00:18:36,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3358 states to 3358 states and 8894 transitions. [2021-07-14 00:18:36,173 INFO L78 Accepts]: Start accepts. Automaton has 3358 states and 8894 transitions. Word has length 65 [2021-07-14 00:18:36,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:36,173 INFO L482 AbstractCegarLoop]: Abstraction has 3358 states and 8894 transitions. [2021-07-14 00:18:36,173 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:18:36,173 INFO L276 IsEmpty]: Start isEmpty. Operand 3358 states and 8894 transitions. [2021-07-14 00:18:36,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-14 00:18:36,179 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:36,179 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, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:36,179 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-14 00:18:36,180 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:36,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:36,180 INFO L82 PathProgramCache]: Analyzing trace with hash 449921699, now seen corresponding path program 1 times [2021-07-14 00:18:36,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:36,180 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482517618] [2021-07-14 00:18:36,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:36,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:36,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:36,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:36,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:36,230 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:18:36,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:18:36,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:18:36,252 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:18:36,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:36,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:36,261 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 00:18:36,261 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:36,261 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482517618] [2021-07-14 00:18:36,261 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482517618] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:36,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:36,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:18:36,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579581270] [2021-07-14 00:18:36,262 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:18:36,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:36,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:18:36,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:18:36,263 INFO L87 Difference]: Start difference. First operand 3358 states and 8894 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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 00:18:36,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:36,403 INFO L93 Difference]: Finished difference Result 3331 states and 8266 transitions. [2021-07-14 00:18:36,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 00:18:36,404 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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 66 [2021-07-14 00:18:36,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:36,433 INFO L225 Difference]: With dead ends: 3331 [2021-07-14 00:18:36,433 INFO L226 Difference]: Without dead ends: 1987 [2021-07-14 00:18:36,433 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 101.3ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:18:36,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2021-07-14 00:18:36,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1987. [2021-07-14 00:18:36,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1987 states, 1915 states have (on average 2.5848563968668405) internal successors, (4950), 1986 states have internal predecessors, (4950), 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 00:18:36,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1987 states to 1987 states and 4950 transitions. [2021-07-14 00:18:36,470 INFO L78 Accepts]: Start accepts. Automaton has 1987 states and 4950 transitions. Word has length 66 [2021-07-14 00:18:36,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:36,470 INFO L482 AbstractCegarLoop]: Abstraction has 1987 states and 4950 transitions. [2021-07-14 00:18:36,470 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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 00:18:36,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1987 states and 4950 transitions. [2021-07-14 00:18:36,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-14 00:18:36,474 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:36,474 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:36,474 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-14 00:18:36,474 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:36,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:36,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1539434394, now seen corresponding path program 1 times [2021-07-14 00:18:36,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:36,475 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704773397] [2021-07-14 00:18:36,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:36,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:36,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:36,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:36,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:36,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:36,524 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:18:36,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:18:36,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:18:36,545 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:18:36,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:36,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:36,554 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 00:18:36,554 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:36,554 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704773397] [2021-07-14 00:18:36,554 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704773397] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:36,554 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:36,554 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-14 00:18:36,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994777539] [2021-07-14 00:18:36,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 00:18:36,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:36,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 00:18:36,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-07-14 00:18:36,556 INFO L87 Difference]: Start difference. First operand 1987 states and 4950 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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 00:18:36,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:36,705 INFO L93 Difference]: Finished difference Result 1447 states and 3284 transitions. [2021-07-14 00:18:36,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 00:18:36,705 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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 68 [2021-07-14 00:18:36,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:36,707 INFO L225 Difference]: With dead ends: 1447 [2021-07-14 00:18:36,707 INFO L226 Difference]: Without dead ends: 726 [2021-07-14 00:18:36,707 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 115.0ms TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-07-14 00:18:36,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2021-07-14 00:18:36,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 726. [2021-07-14 00:18:36,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 699 states have (on average 2.1945636623748213) internal successors, (1534), 725 states have internal predecessors, (1534), 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 00:18:36,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1534 transitions. [2021-07-14 00:18:36,718 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1534 transitions. Word has length 68 [2021-07-14 00:18:36,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:36,718 INFO L482 AbstractCegarLoop]: Abstraction has 726 states and 1534 transitions. [2021-07-14 00:18:36,718 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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 00:18:36,718 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1534 transitions. [2021-07-14 00:18:36,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-07-14 00:18:36,720 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:36,720 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:36,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-14 00:18:36,720 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:36,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:36,720 INFO L82 PathProgramCache]: Analyzing trace with hash -503537053, now seen corresponding path program 1 times [2021-07-14 00:18:36,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:36,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851297001] [2021-07-14 00:18:36,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:36,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:36,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:36,757 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:18:36,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:18:36,765 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:36,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:36,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:36,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:36,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:36,794 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 00:18:36,794 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:36,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851297001] [2021-07-14 00:18:36,794 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851297001] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:36,794 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:36,794 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:18:36,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051824256] [2021-07-14 00:18:36,794 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:18:36,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:36,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:18:36,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:18:36,795 INFO L87 Difference]: Start difference. First operand 726 states and 1534 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 00:18:36,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:36,880 INFO L93 Difference]: Finished difference Result 1060 states and 2434 transitions. [2021-07-14 00:18:36,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 00:18:36,881 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 70 [2021-07-14 00:18:36,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:36,887 INFO L225 Difference]: With dead ends: 1060 [2021-07-14 00:18:36,887 INFO L226 Difference]: Without dead ends: 638 [2021-07-14 00:18:36,888 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 87.5ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:18:36,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2021-07-14 00:18:36,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 638. [2021-07-14 00:18:36,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 611 states have (on average 2.2749590834697218) internal successors, (1390), 637 states have internal predecessors, (1390), 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 00:18:36,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 1390 transitions. [2021-07-14 00:18:36,898 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 1390 transitions. Word has length 70 [2021-07-14 00:18:36,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:36,899 INFO L482 AbstractCegarLoop]: Abstraction has 638 states and 1390 transitions. [2021-07-14 00:18:36,899 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 00:18:36,899 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 1390 transitions. [2021-07-14 00:18:36,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-07-14 00:18:36,900 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:18:36,900 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:18:36,900 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-14 00:18:36,900 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:18:36,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:18:36,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1642851141, now seen corresponding path program 2 times [2021-07-14 00:18:36,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:18:36,901 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153369392] [2021-07-14 00:18:36,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:18:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:18:36,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:36,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:36,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:18:36,952 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:18:36,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:18:36,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:36,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:18:36,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:18:36,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:18:36,983 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 00:18:36,983 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:18:36,983 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153369392] [2021-07-14 00:18:36,983 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153369392] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:18:36,983 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:18:36,983 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:18:36,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969617423] [2021-07-14 00:18:36,983 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:18:36,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:18:36,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:18:36,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:18:36,985 INFO L87 Difference]: Start difference. First operand 638 states and 1390 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 00:18:37,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:18:37,041 INFO L93 Difference]: Finished difference Result 530 states and 1174 transitions. [2021-07-14 00:18:37,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 00:18:37,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 70 [2021-07-14 00:18:37,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:18:37,041 INFO L225 Difference]: With dead ends: 530 [2021-07-14 00:18:37,041 INFO L226 Difference]: Without dead ends: 0 [2021-07-14 00:18:37,042 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 66.3ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:18:37,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-14 00:18:37,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-14 00:18:37,042 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 00:18:37,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-14 00:18:37,042 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2021-07-14 00:18:37,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:18:37,042 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-14 00:18:37,042 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 00:18:37,042 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-14 00:18:37,043 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-14 00:18:37,043 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-14 00:18:37,044 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-14 00:18:37,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 12:18:37 BasicIcfg [2021-07-14 00:18:37,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-14 00:18:37,047 INFO L168 Benchmark]: Toolchain (without parser) took 10837.81 ms. Allocated memory was 190.8 MB in the beginning and 3.3 GB in the end (delta: 3.1 GB). Free memory was 154.1 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 424.7 MB. Max. memory is 8.0 GB. [2021-07-14 00:18:37,047 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 190.8 MB. Free memory is still 172.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 00:18:37,047 INFO L168 Benchmark]: CACSL2BoogieTranslator took 481.19 ms. Allocated memory is still 190.8 MB. Free memory was 154.0 MB in the beginning and 163.4 MB in the end (delta: -9.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-14 00:18:37,051 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.09 ms. Allocated memory is still 190.8 MB. Free memory was 163.4 MB in the beginning and 161.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-14 00:18:37,055 INFO L168 Benchmark]: Boogie Preprocessor took 26.84 ms. Allocated memory is still 190.8 MB. Free memory was 161.3 MB in the beginning and 160.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 00:18:37,056 INFO L168 Benchmark]: RCFGBuilder took 451.83 ms. Allocated memory is still 190.8 MB. Free memory was 160.3 MB in the beginning and 134.0 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2021-07-14 00:18:37,057 INFO L168 Benchmark]: TraceAbstraction took 9812.47 ms. Allocated memory was 190.8 MB in the beginning and 3.3 GB in the end (delta: 3.1 GB). Free memory was 134.0 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 405.3 MB. Max. memory is 8.0 GB. [2021-07-14 00:18:37,059 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 190.8 MB. Free memory is still 172.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 481.19 ms. Allocated memory is still 190.8 MB. Free memory was 154.0 MB in the beginning and 163.4 MB in the end (delta: -9.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 58.09 ms. Allocated memory is still 190.8 MB. Free memory was 163.4 MB in the beginning and 161.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.84 ms. Allocated memory is still 190.8 MB. Free memory was 161.3 MB in the beginning and 160.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 451.83 ms. Allocated memory is still 190.8 MB. Free memory was 160.3 MB in the beginning and 134.0 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9812.47 ms. Allocated memory was 190.8 MB in the beginning and 3.3 GB in the end (delta: 3.1 GB). Free memory was 134.0 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 405.3 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: 134535, positive: 130677, positive conditional: 130677, positive unconditional: 0, negative: 3858, negative conditional: 3858, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 134076, positive: 130677, positive conditional: 0, positive unconditional: 130677, negative: 3399, negative conditional: 0, negative unconditional: 3399, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 985, positive: 962, positive conditional: 0, positive unconditional: 962, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 985, positive: 955, positive conditional: 0, positive unconditional: 955, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 92, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 134076, positive: 129715, positive conditional: 0, positive unconditional: 129715, negative: 3376, negative conditional: 0, negative unconditional: 3376, unknown: 985, unknown conditional: 0, unknown unconditional: 985] , Statistics on independence cache: Total cache size (in pairs): 985, Positive cache size: 962, Positive conditional cache size: 0, Positive unconditional cache size: 962, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Independence queries for same thread: 459 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 127 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9717.7ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 311.0ms, AutomataDifference: 3435.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2087.5ms, PartialOrderReductionTime: 2072.2ms, HoareTripleCheckerStatistics: 1358 SDtfs, 2389 SDslu, 4487 SDs, 0 SdLazy, 610 SolverSat, 143 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 456.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 1541.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28883occurred in iteration=0, InterpolantAutomatonStates: 132, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2083.3ms AutomataMinimizationTime, 12 MinimizatonAttempts, 17762 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 38.9ms SsaConstructionTime, 271.8ms SatisfiabilityAnalysisTime, 1241.9ms InterpolantComputationTime, 763 NumberOfCodeBlocks, 763 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 751 ConstructedInterpolants, 0 QuantifiedInterpolants, 2679 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...