/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/singleton.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 18:17:29,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 18:17:29,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 18:17:30,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-13 18:17:30,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-13 18:17:30,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-13 18:17:30,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-13 18:17:30,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-13 18:17:30,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-13 18:17:30,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-13 18:17:30,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-13 18:17:30,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-13 18:17:30,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-13 18:17:30,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-13 18:17:30,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-13 18:17:30,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-13 18:17:30,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-13 18:17:30,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-13 18:17:30,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-13 18:17:30,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-13 18:17:30,057 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.epf [2021-07-13 18:17:30,087 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 18:17:30,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 18:17:30,087 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-13 18:17:30,088 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-13 18:17:30,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 18:17:30,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 18:17:30,090 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 18:17:30,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 18:17:30,090 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 18:17:30,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 18:17:30,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 18:17:30,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 18:17:30,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 18:17:30,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 18:17:30,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 18:17:30,092 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 18:17:30,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 18:17:30,092 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 18:17:30,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 18:17:30,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 18:17:30,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 18:17:30,093 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 18:17:30,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 18:17:30,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 18:17:30,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 18:17:30,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 18:17:30,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 18:17:30,094 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 18:17:30,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 18:17:30,095 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 18:17:30,095 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 18:17:30,095 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 18:17:30,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 18:17:30,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 18:17:30,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 18:17:30,444 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-13 18:17:30,445 INFO L275 PluginConnector]: CDTParser initialized [2021-07-13 18:17:30,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton.i [2021-07-13 18:17:30,520 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1868a9b82/f4eebce895394460a0025f0f2e7b3536/FLAG1db68fc9b [2021-07-13 18:17:31,008 INFO L306 CDTParser]: Found 1 translation units. [2021-07-13 18:17:31,009 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i [2021-07-13 18:17:31,023 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1868a9b82/f4eebce895394460a0025f0f2e7b3536/FLAG1db68fc9b [2021-07-13 18:17:31,338 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1868a9b82/f4eebce895394460a0025f0f2e7b3536 [2021-07-13 18:17:31,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 18:17:31,341 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-13 18:17:31,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-13 18:17:31,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-13 18:17:31,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-13 18:17:31,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:17:31" (1/1) ... [2021-07-13 18:17:31,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35e0e53f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:31, skipping insertion in model container [2021-07-13 18:17:31,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:17:31" (1/1) ... [2021-07-13 18:17:31,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-13 18:17:31,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-13 18:17:31,653 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-13 18:17:31,841 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/singleton.i[55547,55560] [2021-07-13 18:17:31,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:17:31,876 INFO L203 MainTranslator]: Completed pre-run [2021-07-13 18:17:31,888 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-13 18:17:31,908 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/singleton.i[55547,55560] [2021-07-13 18:17:31,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:17:31,968 INFO L208 MainTranslator]: Completed translation [2021-07-13 18:17:31,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:31 WrapperNode [2021-07-13 18:17:31,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-13 18:17:31,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 18:17:31,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 18:17:31,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 18:17:31,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:31" (1/1) ... [2021-07-13 18:17:31,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:31" (1/1) ... [2021-07-13 18:17:32,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 18:17:32,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 18:17:32,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 18:17:32,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 18:17:32,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:31" (1/1) ... [2021-07-13 18:17:32,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:31" (1/1) ... [2021-07-13 18:17:32,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:31" (1/1) ... [2021-07-13 18:17:32,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:31" (1/1) ... [2021-07-13 18:17:32,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:31" (1/1) ... [2021-07-13 18:17:32,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:31" (1/1) ... [2021-07-13 18:17:32,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:31" (1/1) ... [2021-07-13 18:17:32,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 18:17:32,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 18:17:32,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 18:17:32,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 18:17:32,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 18:17:32,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-13 18:17:32,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-13 18:17:32,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-13 18:17:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-13 18:17:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-13 18:17:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2021-07-13 18:17:32,111 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2021-07-13 18:17:32,111 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-13 18:17:32,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-13 18:17:32,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-13 18:17:32,113 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-13 18:17:32,113 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-13 18:17:32,113 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-13 18:17:32,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-13 18:17:32,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-07-13 18:17:32,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-13 18:17:32,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 18:17:32,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 18:17:32,118 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-13 18:17:32,465 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 18:17:32,466 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-07-13 18:17:32,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:17:32 BoogieIcfgContainer [2021-07-13 18:17:32,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 18:17:32,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 18:17:32,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 18:17:32,471 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 18:17:32,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:17:31" (1/3) ... [2021-07-13 18:17:32,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7455e2c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:17:32, skipping insertion in model container [2021-07-13 18:17:32,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:17:31" (2/3) ... [2021-07-13 18:17:32,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7455e2c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:17:32, skipping insertion in model container [2021-07-13 18:17:32,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:17:32" (3/3) ... [2021-07-13 18:17:32,475 INFO L111 eAbstractionObserver]: Analyzing ICFG singleton.i [2021-07-13 18:17:32,480 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 18:17:32,481 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 18:17:32,481 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-13 18:17:32,481 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 18:17:32,536 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,537 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,537 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,537 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,538 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,538 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,538 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,538 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,538 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,539 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,539 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,539 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,539 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,539 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,539 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,539 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,540 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,540 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,540 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,540 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,542 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,542 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,542 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,542 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,542 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,543 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,544 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,544 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,544 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,544 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,545 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,545 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,545 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,545 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,545 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,545 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,546 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,546 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,546 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,546 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,546 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,547 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,547 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,547 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,547 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,547 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,547 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,548 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,548 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,548 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,548 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,548 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,549 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,549 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,549 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,549 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,549 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,549 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,550 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,550 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,550 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,550 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,550 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,550 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,550 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,550 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,550 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,550 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,551 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,551 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,551 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,552 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,552 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,552 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,552 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,552 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,553 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,553 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,553 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,553 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,553 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,553 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,554 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,554 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,554 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,554 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,554 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,554 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,554 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,555 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,556 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,558 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,558 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,559 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,559 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,564 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,565 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,565 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,565 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,565 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,565 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,565 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,568 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,568 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,568 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,568 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,568 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,568 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,568 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,568 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,569 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,569 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,569 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,569 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,569 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,569 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,569 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,569 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,570 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,570 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,571 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,571 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,571 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,571 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,571 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,571 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,571 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,571 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,571 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,572 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,572 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,572 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,572 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,572 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,572 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,572 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,572 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,572 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,572 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,573 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,573 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,573 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,573 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,573 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,573 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,573 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,574 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,574 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,574 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,574 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,574 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,574 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,574 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,574 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,574 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,574 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,574 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,575 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,575 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,575 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,575 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,575 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,575 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,575 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,575 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,575 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,576 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,576 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,576 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,576 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,576 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,576 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,576 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,576 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,576 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,576 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,577 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,577 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,577 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,577 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,577 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,577 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,577 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,577 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,577 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,578 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,578 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,578 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,578 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,578 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,578 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,578 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,578 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,578 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,579 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,579 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,579 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,579 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,579 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,579 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,579 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,579 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,580 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,580 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,580 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,580 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,580 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,581 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,581 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,581 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,581 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,581 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,581 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,581 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,581 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,581 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,582 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,582 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,585 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,591 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,592 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,592 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,593 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,593 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,593 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,593 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,593 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,594 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,594 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,594 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,596 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,596 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,596 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,596 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,602 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,602 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,602 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,602 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,604 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,604 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,604 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,604 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,607 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,607 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,607 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,607 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,607 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,607 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,610 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,611 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,611 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,611 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,611 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,611 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,611 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,612 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,612 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,612 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,612 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,612 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,612 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,613 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,613 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,613 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,613 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,613 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,613 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,613 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,613 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,613 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,613 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,613 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,614 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,614 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,614 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,614 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,614 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,616 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,616 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,617 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,617 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,619 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,619 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,619 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,619 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,619 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,619 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,622 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,622 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,622 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,622 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,626 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,626 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,626 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,627 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,629 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,630 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,630 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,630 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,632 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,632 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,633 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,633 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:17:32,829 INFO L149 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2021-07-13 18:17:32,850 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-07-13 18:17:32,866 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 18:17:32,867 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 18:17:32,867 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 18:17:32,867 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 18:17:32,867 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 18:17:32,867 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 18:17:32,867 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 18:17:32,867 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 18:17:32,880 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 197 places, 278 transitions, 936 flow [2021-07-13 18:17:35,986 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 70523 states, 70518 states have (on average 4.318698771944752) internal successors, (304546), 70522 states have internal predecessors, (304546), 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) [2021-07-13 18:17:36,137 INFO L276 IsEmpty]: Start isEmpty. Operand has 70523 states, 70518 states have (on average 4.318698771944752) internal successors, (304546), 70522 states have internal predecessors, (304546), 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) [2021-07-13 18:17:36,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-07-13 18:17:36,146 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:17:36,146 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] [2021-07-13 18:17:36,147 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:17:36,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:17:36,152 INFO L82 PathProgramCache]: Analyzing trace with hash -811265628, now seen corresponding path program 1 times [2021-07-13 18:17:36,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:17:36,160 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978989584] [2021-07-13 18:17:36,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:17:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:17:36,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:17:36,747 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:17:36,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978989584] [2021-07-13 18:17:36,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978989584] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:17:36,748 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:17:36,748 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-13 18:17:36,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315655145] [2021-07-13 18:17:36,752 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 18:17:36,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:17:36,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 18:17:36,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:17:37,025 INFO L87 Difference]: Start difference. First operand has 70523 states, 70518 states have (on average 4.318698771944752) internal successors, (304546), 70522 states have internal predecessors, (304546), 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 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:17:39,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:17:39,222 INFO L93 Difference]: Finished difference Result 76003 states and 329087 transitions. [2021-07-13 18:17:39,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:17:39,223 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-07-13 18:17:39,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:17:39,981 INFO L225 Difference]: With dead ends: 76003 [2021-07-13 18:17:39,982 INFO L226 Difference]: Without dead ends: 54772 [2021-07-13 18:17:39,983 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 409.8ms TimeCoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2021-07-13 18:17:40,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54772 states. [2021-07-13 18:17:42,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54772 to 46283. [2021-07-13 18:17:42,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46283 states, 46280 states have (on average 4.362337942955921) internal successors, (201889), 46282 states have internal predecessors, (201889), 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) [2021-07-13 18:17:42,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46283 states to 46283 states and 201889 transitions. [2021-07-13 18:17:42,981 INFO L78 Accepts]: Start accepts. Automaton has 46283 states and 201889 transitions. Word has length 41 [2021-07-13 18:17:42,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:17:42,981 INFO L482 AbstractCegarLoop]: Abstraction has 46283 states and 201889 transitions. [2021-07-13 18:17:42,981 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:17:42,981 INFO L276 IsEmpty]: Start isEmpty. Operand 46283 states and 201889 transitions. [2021-07-13 18:17:42,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-07-13 18:17:42,991 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:17:42,991 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] [2021-07-13 18:17:42,991 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-13 18:17:42,991 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:17:42,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:17:42,996 INFO L82 PathProgramCache]: Analyzing trace with hash -589683484, now seen corresponding path program 2 times [2021-07-13 18:17:42,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:17:42,997 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324286315] [2021-07-13 18:17:42,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:17:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:17:43,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:17:43,288 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:17:43,288 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324286315] [2021-07-13 18:17:43,288 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324286315] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:17:43,288 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:17:43,288 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-13 18:17:43,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906041279] [2021-07-13 18:17:43,289 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 18:17:43,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:17:43,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 18:17:43,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:17:43,290 INFO L87 Difference]: Start difference. First operand 46283 states and 201889 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:17:43,751 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-07-13 18:17:44,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:17:44,797 INFO L93 Difference]: Finished difference Result 54799 states and 241924 transitions. [2021-07-13 18:17:44,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:17:44,798 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-07-13 18:17:44,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:17:45,233 INFO L225 Difference]: With dead ends: 54799 [2021-07-13 18:17:45,233 INFO L226 Difference]: Without dead ends: 54799 [2021-07-13 18:17:45,234 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 583.2ms TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:17:45,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54799 states. [2021-07-13 18:17:47,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54799 to 46286. [2021-07-13 18:17:47,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46286 states, 46283 states have (on average 4.362120000864248) internal successors, (201892), 46285 states have internal predecessors, (201892), 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) [2021-07-13 18:17:47,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46286 states to 46286 states and 201892 transitions. [2021-07-13 18:17:47,851 INFO L78 Accepts]: Start accepts. Automaton has 46286 states and 201892 transitions. Word has length 41 [2021-07-13 18:17:47,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:17:47,852 INFO L482 AbstractCegarLoop]: Abstraction has 46286 states and 201892 transitions. [2021-07-13 18:17:47,853 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:17:47,853 INFO L276 IsEmpty]: Start isEmpty. Operand 46286 states and 201892 transitions. [2021-07-13 18:17:47,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-07-13 18:17:47,857 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:17:47,857 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] [2021-07-13 18:17:47,857 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-13 18:17:47,857 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:17:47,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:17:47,858 INFO L82 PathProgramCache]: Analyzing trace with hash 325896192, now seen corresponding path program 3 times [2021-07-13 18:17:47,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:17:47,858 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402630874] [2021-07-13 18:17:47,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:17:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:17:48,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:17:48,133 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:17:48,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402630874] [2021-07-13 18:17:48,133 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402630874] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:17:48,133 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:17:48,133 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-13 18:17:48,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800369697] [2021-07-13 18:17:48,134 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-13 18:17:48,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:17:48,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-13 18:17:48,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:17:48,136 INFO L87 Difference]: Start difference. First operand 46286 states and 201892 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:17:49,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:17:49,105 INFO L93 Difference]: Finished difference Result 54743 states and 241824 transitions. [2021-07-13 18:17:49,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-13 18:17:49,105 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-07-13 18:17:49,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:17:49,408 INFO L225 Difference]: With dead ends: 54743 [2021-07-13 18:17:49,408 INFO L226 Difference]: Without dead ends: 54743 [2021-07-13 18:17:49,409 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 217.1ms TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-07-13 18:17:49,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54743 states. [2021-07-13 18:17:51,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54743 to 46227. [2021-07-13 18:17:51,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46227 states, 46225 states have (on average 4.365365062195782) internal successors, (201789), 46226 states have internal predecessors, (201789), 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) [2021-07-13 18:17:51,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46227 states to 46227 states and 201789 transitions. [2021-07-13 18:17:51,438 INFO L78 Accepts]: Start accepts. Automaton has 46227 states and 201789 transitions. Word has length 41 [2021-07-13 18:17:51,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:17:51,438 INFO L482 AbstractCegarLoop]: Abstraction has 46227 states and 201789 transitions. [2021-07-13 18:17:51,439 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:17:51,439 INFO L276 IsEmpty]: Start isEmpty. Operand 46227 states and 201789 transitions. [2021-07-13 18:17:51,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-07-13 18:17:51,441 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:17:51,441 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:17:51,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-13 18:17:51,441 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:17:51,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:17:51,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1046012557, now seen corresponding path program 1 times [2021-07-13 18:17:51,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:17:51,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792867826] [2021-07-13 18:17:51,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:17:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:17:51,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:17:51,489 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:17:51,489 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792867826] [2021-07-13 18:17:51,490 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792867826] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:17:51,490 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:17:51,490 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:17:51,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378084991] [2021-07-13 18:17:51,490 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:17:51,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:17:51,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:17:51,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:17:51,491 INFO L87 Difference]: Start difference. First operand 46227 states and 201789 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:17:52,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:17:52,915 INFO L93 Difference]: Finished difference Result 96773 states and 411557 transitions. [2021-07-13 18:17:52,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 18:17:52,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-07-13 18:17:52,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:17:53,269 INFO L225 Difference]: With dead ends: 96773 [2021-07-13 18:17:53,269 INFO L226 Difference]: Without dead ends: 61407 [2021-07-13 18:17:53,270 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 37.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:17:53,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61407 states. [2021-07-13 18:17:55,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61407 to 49089. [2021-07-13 18:17:55,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49089 states, 49087 states have (on average 4.207203536577913) internal successors, (206519), 49088 states have internal predecessors, (206519), 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) [2021-07-13 18:17:55,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49089 states to 49089 states and 206519 transitions. [2021-07-13 18:17:55,566 INFO L78 Accepts]: Start accepts. Automaton has 49089 states and 206519 transitions. Word has length 54 [2021-07-13 18:17:55,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:17:55,566 INFO L482 AbstractCegarLoop]: Abstraction has 49089 states and 206519 transitions. [2021-07-13 18:17:55,566 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:17:55,566 INFO L276 IsEmpty]: Start isEmpty. Operand 49089 states and 206519 transitions. [2021-07-13 18:17:55,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-07-13 18:17:55,575 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:17:55,575 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] [2021-07-13 18:17:55,575 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-13 18:17:55,575 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:17:55,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:17:55,575 INFO L82 PathProgramCache]: Analyzing trace with hash -246346948, now seen corresponding path program 1 times [2021-07-13 18:17:55,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:17:55,576 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922591107] [2021-07-13 18:17:55,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:17:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:17:55,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:17:55,686 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:17:55,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922591107] [2021-07-13 18:17:55,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922591107] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:17:55,687 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:17:55,687 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-13 18:17:55,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920395069] [2021-07-13 18:17:55,687 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-13 18:17:55,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:17:55,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-13 18:17:55,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-07-13 18:17:55,688 INFO L87 Difference]: Start difference. First operand 49089 states and 206519 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:17:56,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:17:56,768 INFO L93 Difference]: Finished difference Result 67425 states and 276590 transitions. [2021-07-13 18:17:56,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 18:17:56,769 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-07-13 18:17:56,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:17:57,361 INFO L225 Difference]: With dead ends: 67425 [2021-07-13 18:17:57,361 INFO L226 Difference]: Without dead ends: 61341 [2021-07-13 18:17:57,361 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 120.0ms TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:17:57,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61341 states. [2021-07-13 18:17:59,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61341 to 48869. [2021-07-13 18:17:59,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48869 states, 48867 states have (on average 4.211697055272475) internal successors, (205813), 48868 states have internal predecessors, (205813), 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) [2021-07-13 18:17:59,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48869 states to 48869 states and 205813 transitions. [2021-07-13 18:17:59,512 INFO L78 Accepts]: Start accepts. Automaton has 48869 states and 205813 transitions. Word has length 59 [2021-07-13 18:17:59,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:17:59,513 INFO L482 AbstractCegarLoop]: Abstraction has 48869 states and 205813 transitions. [2021-07-13 18:17:59,513 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:17:59,513 INFO L276 IsEmpty]: Start isEmpty. Operand 48869 states and 205813 transitions. [2021-07-13 18:17:59,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-13 18:17:59,521 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:17:59,521 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] [2021-07-13 18:17:59,521 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-13 18:17:59,521 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:17:59,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:17:59,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1864004856, now seen corresponding path program 1 times [2021-07-13 18:17:59,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:17:59,522 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975646241] [2021-07-13 18:17:59,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:17:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:00,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:18:00,051 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:00,052 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975646241] [2021-07-13 18:18:00,052 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975646241] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:00,052 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:00,052 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 18:18:00,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740433504] [2021-07-13 18:18:00,052 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 18:18:00,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:00,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 18:18:00,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-07-13 18:18:00,053 INFO L87 Difference]: Start difference. First operand 48869 states and 205813 transitions. Second operand has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 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) [2021-07-13 18:18:00,556 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-07-13 18:18:02,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:02,430 INFO L93 Difference]: Finished difference Result 57826 states and 244284 transitions. [2021-07-13 18:18:02,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-13 18:18:02,431 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 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 [2021-07-13 18:18:02,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:02,689 INFO L225 Difference]: With dead ends: 57826 [2021-07-13 18:18:02,690 INFO L226 Difference]: Without dead ends: 57556 [2021-07-13 18:18:02,690 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1230.9ms TimeCoverageRelationStatistics Valid=174, Invalid=1158, Unknown=0, NotChecked=0, Total=1332 [2021-07-13 18:18:03,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57556 states. [2021-07-13 18:18:04,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57556 to 54249. [2021-07-13 18:18:04,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54249 states, 54247 states have (on average 4.2520139362545395) internal successors, (230659), 54248 states have internal predecessors, (230659), 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) [2021-07-13 18:18:04,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54249 states to 54249 states and 230659 transitions. [2021-07-13 18:18:04,920 INFO L78 Accepts]: Start accepts. Automaton has 54249 states and 230659 transitions. Word has length 60 [2021-07-13 18:18:04,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:04,921 INFO L482 AbstractCegarLoop]: Abstraction has 54249 states and 230659 transitions. [2021-07-13 18:18:04,921 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 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) [2021-07-13 18:18:04,921 INFO L276 IsEmpty]: Start isEmpty. Operand 54249 states and 230659 transitions. [2021-07-13 18:18:04,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-13 18:18:04,934 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:04,934 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] [2021-07-13 18:18:04,934 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-13 18:18:04,934 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:04,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:04,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1211952212, now seen corresponding path program 2 times [2021-07-13 18:18:04,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:04,935 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873635791] [2021-07-13 18:18:04,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:05,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:18:05,318 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:05,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873635791] [2021-07-13 18:18:05,319 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873635791] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:05,319 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:05,319 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:18:05,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251680701] [2021-07-13 18:18:05,319 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:18:05,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:05,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:18:05,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:18:05,320 INFO L87 Difference]: Start difference. First operand 54249 states and 230659 transitions. Second operand has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 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) [2021-07-13 18:18:07,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:07,258 INFO L93 Difference]: Finished difference Result 63300 states and 269393 transitions. [2021-07-13 18:18:07,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 18:18:07,258 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 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 [2021-07-13 18:18:07,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:07,610 INFO L225 Difference]: With dead ends: 63300 [2021-07-13 18:18:07,610 INFO L226 Difference]: Without dead ends: 63030 [2021-07-13 18:18:07,610 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 661.1ms TimeCoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:18:07,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63030 states. [2021-07-13 18:18:09,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63030 to 54264. [2021-07-13 18:18:09,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54264 states, 54262 states have (on average 4.2514466846043275) internal successors, (230692), 54263 states have internal predecessors, (230692), 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) [2021-07-13 18:18:09,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54264 states to 54264 states and 230692 transitions. [2021-07-13 18:18:09,997 INFO L78 Accepts]: Start accepts. Automaton has 54264 states and 230692 transitions. Word has length 60 [2021-07-13 18:18:09,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:09,998 INFO L482 AbstractCegarLoop]: Abstraction has 54264 states and 230692 transitions. [2021-07-13 18:18:09,998 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 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) [2021-07-13 18:18:09,998 INFO L276 IsEmpty]: Start isEmpty. Operand 54264 states and 230692 transitions. [2021-07-13 18:18:10,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-13 18:18:10,027 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:10,027 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] [2021-07-13 18:18:10,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-13 18:18:10,028 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:10,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:10,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1520073798, now seen corresponding path program 3 times [2021-07-13 18:18:10,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:10,028 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736232978] [2021-07-13 18:18:10,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:10,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:18:10,423 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:10,423 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736232978] [2021-07-13 18:18:10,423 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736232978] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:10,423 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:10,423 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:18:10,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294496105] [2021-07-13 18:18:10,423 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:18:10,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:10,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:18:10,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:18:10,424 INFO L87 Difference]: Start difference. First operand 54264 states and 230692 transitions. Second operand has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 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) [2021-07-13 18:18:11,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:11,838 INFO L93 Difference]: Finished difference Result 63260 states and 269245 transitions. [2021-07-13 18:18:11,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:18:11,838 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 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 [2021-07-13 18:18:11,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:12,185 INFO L225 Difference]: With dead ends: 63260 [2021-07-13 18:18:12,185 INFO L226 Difference]: Without dead ends: 62990 [2021-07-13 18:18:12,186 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 461.5ms TimeCoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:18:12,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62990 states. [2021-07-13 18:18:13,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62990 to 54281. [2021-07-13 18:18:14,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54281 states, 54279 states have (on average 4.250759962416404) internal successors, (230727), 54280 states have internal predecessors, (230727), 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) [2021-07-13 18:18:14,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54281 states to 54281 states and 230727 transitions. [2021-07-13 18:18:14,841 INFO L78 Accepts]: Start accepts. Automaton has 54281 states and 230727 transitions. Word has length 60 [2021-07-13 18:18:14,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:14,841 INFO L482 AbstractCegarLoop]: Abstraction has 54281 states and 230727 transitions. [2021-07-13 18:18:14,841 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 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) [2021-07-13 18:18:14,841 INFO L276 IsEmpty]: Start isEmpty. Operand 54281 states and 230727 transitions. [2021-07-13 18:18:14,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-13 18:18:14,856 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:14,856 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] [2021-07-13 18:18:14,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-13 18:18:14,856 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:14,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:14,873 INFO L82 PathProgramCache]: Analyzing trace with hash -181639794, now seen corresponding path program 4 times [2021-07-13 18:18:14,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:14,880 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543076952] [2021-07-13 18:18:14,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:15,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:18:15,241 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:15,241 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543076952] [2021-07-13 18:18:15,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543076952] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:15,241 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:15,241 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-07-13 18:18:15,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482756997] [2021-07-13 18:18:15,241 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-13 18:18:15,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:15,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-13 18:18:15,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-07-13 18:18:15,242 INFO L87 Difference]: Start difference. First operand 54281 states and 230727 transitions. Second operand has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 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) [2021-07-13 18:18:16,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:16,683 INFO L93 Difference]: Finished difference Result 63305 states and 269323 transitions. [2021-07-13 18:18:16,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:18:16,684 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 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 [2021-07-13 18:18:16,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:17,059 INFO L225 Difference]: With dead ends: 63305 [2021-07-13 18:18:17,059 INFO L226 Difference]: Without dead ends: 63035 [2021-07-13 18:18:17,060 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 398.9ms TimeCoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2021-07-13 18:18:17,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63035 states. [2021-07-13 18:18:19,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63035 to 54310. [2021-07-13 18:18:19,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54310 states, 54308 states have (on average 4.249318700743905) internal successors, (230772), 54309 states have internal predecessors, (230772), 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) [2021-07-13 18:18:19,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54310 states to 54310 states and 230772 transitions. [2021-07-13 18:18:19,709 INFO L78 Accepts]: Start accepts. Automaton has 54310 states and 230772 transitions. Word has length 60 [2021-07-13 18:18:19,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:19,709 INFO L482 AbstractCegarLoop]: Abstraction has 54310 states and 230772 transitions. [2021-07-13 18:18:19,709 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 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) [2021-07-13 18:18:19,709 INFO L276 IsEmpty]: Start isEmpty. Operand 54310 states and 230772 transitions. [2021-07-13 18:18:19,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-13 18:18:19,721 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:19,721 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] [2021-07-13 18:18:19,721 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-13 18:18:19,722 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:19,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:19,722 INFO L82 PathProgramCache]: Analyzing trace with hash -994232682, now seen corresponding path program 5 times [2021-07-13 18:18:19,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:19,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062531430] [2021-07-13 18:18:19,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:20,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:18:20,052 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:20,052 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062531430] [2021-07-13 18:18:20,052 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062531430] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:20,052 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:20,052 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-13 18:18:20,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022655252] [2021-07-13 18:18:20,053 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-13 18:18:20,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:20,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-13 18:18:20,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-07-13 18:18:20,054 INFO L87 Difference]: Start difference. First operand 54310 states and 230772 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 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) [2021-07-13 18:18:21,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:21,242 INFO L93 Difference]: Finished difference Result 63086 states and 268677 transitions. [2021-07-13 18:18:21,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 18:18:21,242 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 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 [2021-07-13 18:18:21,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:21,571 INFO L225 Difference]: With dead ends: 63086 [2021-07-13 18:18:21,571 INFO L226 Difference]: Without dead ends: 62816 [2021-07-13 18:18:21,571 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 254.2ms TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-07-13 18:18:21,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62816 states. [2021-07-13 18:18:23,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62816 to 54062. [2021-07-13 18:18:23,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54062 states, 54060 states have (on average 4.256030336662967) internal successors, (230081), 54061 states have internal predecessors, (230081), 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) [2021-07-13 18:18:24,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54062 states to 54062 states and 230081 transitions. [2021-07-13 18:18:24,029 INFO L78 Accepts]: Start accepts. Automaton has 54062 states and 230081 transitions. Word has length 60 [2021-07-13 18:18:24,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:24,030 INFO L482 AbstractCegarLoop]: Abstraction has 54062 states and 230081 transitions. [2021-07-13 18:18:24,030 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 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) [2021-07-13 18:18:24,030 INFO L276 IsEmpty]: Start isEmpty. Operand 54062 states and 230081 transitions. [2021-07-13 18:18:24,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-13 18:18:24,047 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:24,047 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] [2021-07-13 18:18:24,047 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-13 18:18:24,047 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:24,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:24,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1981736042, now seen corresponding path program 1 times [2021-07-13 18:18:24,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:24,048 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247915146] [2021-07-13 18:18:24,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:24,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:18:24,348 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:24,348 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247915146] [2021-07-13 18:18:24,348 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247915146] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:24,349 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:24,349 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-13 18:18:24,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890356022] [2021-07-13 18:18:24,349 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-13 18:18:24,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:24,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-13 18:18:24,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-07-13 18:18:24,350 INFO L87 Difference]: Start difference. First operand 54062 states and 230081 transitions. Second operand has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 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) [2021-07-13 18:18:25,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:25,930 INFO L93 Difference]: Finished difference Result 61819 states and 261592 transitions. [2021-07-13 18:18:25,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:18:25,931 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 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 [2021-07-13 18:18:25,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:26,206 INFO L225 Difference]: With dead ends: 61819 [2021-07-13 18:18:26,207 INFO L226 Difference]: Without dead ends: 61477 [2021-07-13 18:18:26,207 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 509.6ms TimeCoverageRelationStatistics Valid=144, Invalid=726, Unknown=0, NotChecked=0, Total=870 [2021-07-13 18:18:26,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61477 states. [2021-07-13 18:18:28,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61477 to 57966. [2021-07-13 18:18:28,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57966 states, 57964 states have (on average 4.260696294251605) internal successors, (246967), 57965 states have internal predecessors, (246967), 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) [2021-07-13 18:18:28,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57966 states to 57966 states and 246967 transitions. [2021-07-13 18:18:28,517 INFO L78 Accepts]: Start accepts. Automaton has 57966 states and 246967 transitions. Word has length 62 [2021-07-13 18:18:28,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:28,518 INFO L482 AbstractCegarLoop]: Abstraction has 57966 states and 246967 transitions. [2021-07-13 18:18:28,518 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 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) [2021-07-13 18:18:28,518 INFO L276 IsEmpty]: Start isEmpty. Operand 57966 states and 246967 transitions. [2021-07-13 18:18:28,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-13 18:18:28,532 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:28,532 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] [2021-07-13 18:18:28,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-13 18:18:28,532 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:28,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:28,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1061178024, now seen corresponding path program 2 times [2021-07-13 18:18:28,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:28,533 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365916101] [2021-07-13 18:18:28,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:28,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:18:28,984 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:28,984 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365916101] [2021-07-13 18:18:28,984 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365916101] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:28,984 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:28,984 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:18:28,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962461218] [2021-07-13 18:18:28,985 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:18:28,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:28,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:18:28,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:18:28,986 INFO L87 Difference]: Start difference. First operand 57966 states and 246967 transitions. Second operand has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 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) [2021-07-13 18:18:30,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:30,991 INFO L93 Difference]: Finished difference Result 68527 states and 290991 transitions. [2021-07-13 18:18:30,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 18:18:30,991 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 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 [2021-07-13 18:18:30,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:31,310 INFO L225 Difference]: With dead ends: 68527 [2021-07-13 18:18:31,310 INFO L226 Difference]: Without dead ends: 68185 [2021-07-13 18:18:31,311 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 770.0ms TimeCoverageRelationStatistics Valid=176, Invalid=1014, Unknown=0, NotChecked=0, Total=1190 [2021-07-13 18:18:31,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68185 states. [2021-07-13 18:18:33,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68185 to 60588. [2021-07-13 18:18:33,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60588 states, 60586 states have (on average 4.283184233981448) internal successors, (259501), 60587 states have internal predecessors, (259501), 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) [2021-07-13 18:18:33,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60588 states to 60588 states and 259501 transitions. [2021-07-13 18:18:33,831 INFO L78 Accepts]: Start accepts. Automaton has 60588 states and 259501 transitions. Word has length 62 [2021-07-13 18:18:33,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:33,831 INFO L482 AbstractCegarLoop]: Abstraction has 60588 states and 259501 transitions. [2021-07-13 18:18:33,831 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 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) [2021-07-13 18:18:33,832 INFO L276 IsEmpty]: Start isEmpty. Operand 60588 states and 259501 transitions. [2021-07-13 18:18:33,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-13 18:18:33,848 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:33,848 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] [2021-07-13 18:18:33,848 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-13 18:18:33,848 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:33,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:33,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1539655885, now seen corresponding path program 1 times [2021-07-13 18:18:33,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:33,849 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880566476] [2021-07-13 18:18:33,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:34,574 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2021-07-13 18:18:34,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:18:34,695 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:34,695 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880566476] [2021-07-13 18:18:34,695 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880566476] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:34,695 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:34,695 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 18:18:34,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378846112] [2021-07-13 18:18:34,696 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 18:18:34,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:34,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 18:18:34,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-07-13 18:18:34,697 INFO L87 Difference]: Start difference. First operand 60588 states and 259501 transitions. Second operand has 20 states, 20 states have (on average 3.1) internal successors, (62), 20 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) [2021-07-13 18:18:36,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:36,559 INFO L93 Difference]: Finished difference Result 71101 states and 302938 transitions. [2021-07-13 18:18:36,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 18:18:36,559 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.1) internal successors, (62), 20 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 [2021-07-13 18:18:36,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:37,164 INFO L225 Difference]: With dead ends: 71101 [2021-07-13 18:18:37,164 INFO L226 Difference]: Without dead ends: 70759 [2021-07-13 18:18:37,165 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 908.2ms TimeCoverageRelationStatistics Valid=174, Invalid=1086, Unknown=0, NotChecked=0, Total=1260 [2021-07-13 18:18:37,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70759 states. [2021-07-13 18:18:38,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70759 to 60588. [2021-07-13 18:18:39,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60588 states, 60586 states have (on average 4.283184233981448) internal successors, (259501), 60587 states have internal predecessors, (259501), 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) [2021-07-13 18:18:39,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60588 states to 60588 states and 259501 transitions. [2021-07-13 18:18:39,295 INFO L78 Accepts]: Start accepts. Automaton has 60588 states and 259501 transitions. Word has length 62 [2021-07-13 18:18:39,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:39,295 INFO L482 AbstractCegarLoop]: Abstraction has 60588 states and 259501 transitions. [2021-07-13 18:18:39,295 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.1) internal successors, (62), 20 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) [2021-07-13 18:18:39,295 INFO L276 IsEmpty]: Start isEmpty. Operand 60588 states and 259501 transitions. [2021-07-13 18:18:39,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-13 18:18:39,313 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:39,313 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] [2021-07-13 18:18:39,313 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-13 18:18:39,313 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:39,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:39,314 INFO L82 PathProgramCache]: Analyzing trace with hash -2029423109, now seen corresponding path program 2 times [2021-07-13 18:18:39,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:39,314 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288799573] [2021-07-13 18:18:39,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:40,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:18:40,056 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:40,056 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288799573] [2021-07-13 18:18:40,056 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288799573] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:40,056 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:40,056 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:18:40,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696415710] [2021-07-13 18:18:40,057 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:18:40,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:40,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:18:40,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:18:40,058 INFO L87 Difference]: Start difference. First operand 60588 states and 259501 transitions. Second operand has 18 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 18 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) [2021-07-13 18:18:41,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:41,661 INFO L93 Difference]: Finished difference Result 73658 states and 314685 transitions. [2021-07-13 18:18:41,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:18:41,661 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 18 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 [2021-07-13 18:18:41,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:41,985 INFO L225 Difference]: With dead ends: 73658 [2021-07-13 18:18:41,985 INFO L226 Difference]: Without dead ends: 73316 [2021-07-13 18:18:41,986 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 931.9ms TimeCoverageRelationStatistics Valid=131, Invalid=799, Unknown=0, NotChecked=0, Total=930 [2021-07-13 18:18:42,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73316 states. [2021-07-13 18:18:44,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73316 to 57618. [2021-07-13 18:18:44,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57618 states, 57616 states have (on average 4.267998472646487) internal successors, (245905), 57617 states have internal predecessors, (245905), 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) [2021-07-13 18:18:44,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57618 states to 57618 states and 245905 transitions. [2021-07-13 18:18:44,732 INFO L78 Accepts]: Start accepts. Automaton has 57618 states and 245905 transitions. Word has length 62 [2021-07-13 18:18:44,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:44,732 INFO L482 AbstractCegarLoop]: Abstraction has 57618 states and 245905 transitions. [2021-07-13 18:18:44,732 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 18 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) [2021-07-13 18:18:44,732 INFO L276 IsEmpty]: Start isEmpty. Operand 57618 states and 245905 transitions. [2021-07-13 18:18:44,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-13 18:18:44,754 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:44,754 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] [2021-07-13 18:18:44,754 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-13 18:18:44,754 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:44,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:44,755 INFO L82 PathProgramCache]: Analyzing trace with hash -708279666, now seen corresponding path program 3 times [2021-07-13 18:18:44,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:44,755 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591766685] [2021-07-13 18:18:44,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:45,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:18:45,144 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:45,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591766685] [2021-07-13 18:18:45,144 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591766685] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:45,144 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:45,144 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-13 18:18:45,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144218495] [2021-07-13 18:18:45,145 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-13 18:18:45,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:45,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-13 18:18:45,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-07-13 18:18:45,145 INFO L87 Difference]: Start difference. First operand 57618 states and 245905 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 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) [2021-07-13 18:18:45,701 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2021-07-13 18:18:47,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:47,285 INFO L93 Difference]: Finished difference Result 65384 states and 277429 transitions. [2021-07-13 18:18:47,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:18:47,285 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 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 [2021-07-13 18:18:47,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:47,814 INFO L225 Difference]: With dead ends: 65384 [2021-07-13 18:18:47,814 INFO L226 Difference]: Without dead ends: 65042 [2021-07-13 18:18:47,815 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 852.1ms TimeCoverageRelationStatistics Valid=127, Invalid=575, Unknown=0, NotChecked=0, Total=702 [2021-07-13 18:18:48,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65042 states. [2021-07-13 18:18:49,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65042 to 57621. [2021-07-13 18:18:49,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57621 states, 57619 states have (on average 4.267828320519273) internal successors, (245908), 57620 states have internal predecessors, (245908), 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) [2021-07-13 18:18:50,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57621 states to 57621 states and 245908 transitions. [2021-07-13 18:18:50,198 INFO L78 Accepts]: Start accepts. Automaton has 57621 states and 245908 transitions. Word has length 62 [2021-07-13 18:18:50,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:50,199 INFO L482 AbstractCegarLoop]: Abstraction has 57621 states and 245908 transitions. [2021-07-13 18:18:50,199 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 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) [2021-07-13 18:18:50,199 INFO L276 IsEmpty]: Start isEmpty. Operand 57621 states and 245908 transitions. [2021-07-13 18:18:50,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-13 18:18:50,261 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:50,261 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] [2021-07-13 18:18:50,261 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-07-13 18:18:50,262 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:50,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:50,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1418123072, now seen corresponding path program 4 times [2021-07-13 18:18:50,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:50,262 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695724803] [2021-07-13 18:18:50,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:50,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:18:50,534 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:50,534 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695724803] [2021-07-13 18:18:50,534 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695724803] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:50,534 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:50,534 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-13 18:18:50,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119821767] [2021-07-13 18:18:50,535 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-13 18:18:50,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:50,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-13 18:18:50,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-07-13 18:18:50,535 INFO L87 Difference]: Start difference. First operand 57621 states and 245908 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 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) [2021-07-13 18:18:51,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:51,741 INFO L93 Difference]: Finished difference Result 65409 states and 277466 transitions. [2021-07-13 18:18:51,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-13 18:18:51,742 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 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 [2021-07-13 18:18:51,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:52,059 INFO L225 Difference]: With dead ends: 65409 [2021-07-13 18:18:52,059 INFO L226 Difference]: Without dead ends: 65067 [2021-07-13 18:18:52,059 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 328.7ms TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:18:52,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65067 states. [2021-07-13 18:18:53,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65067 to 57649. [2021-07-13 18:18:53,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57649 states, 57647 states have (on average 4.266518639304734) internal successors, (245952), 57648 states have internal predecessors, (245952), 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) [2021-07-13 18:18:54,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57649 states to 57649 states and 245952 transitions. [2021-07-13 18:18:54,511 INFO L78 Accepts]: Start accepts. Automaton has 57649 states and 245952 transitions. Word has length 62 [2021-07-13 18:18:54,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:54,512 INFO L482 AbstractCegarLoop]: Abstraction has 57649 states and 245952 transitions. [2021-07-13 18:18:54,512 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 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) [2021-07-13 18:18:54,512 INFO L276 IsEmpty]: Start isEmpty. Operand 57649 states and 245952 transitions. [2021-07-13 18:18:54,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-13 18:18:54,531 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:54,531 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] [2021-07-13 18:18:54,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-07-13 18:18:54,532 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:54,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:54,532 INFO L82 PathProgramCache]: Analyzing trace with hash 670055796, now seen corresponding path program 5 times [2021-07-13 18:18:54,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:54,532 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156197304] [2021-07-13 18:18:54,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:54,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:18:54,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:54,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156197304] [2021-07-13 18:18:54,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156197304] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:54,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:54,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-13 18:18:54,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925997870] [2021-07-13 18:18:54,726 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-13 18:18:54,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:54,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-13 18:18:54,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-07-13 18:18:54,727 INFO L87 Difference]: Start difference. First operand 57649 states and 245952 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 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) [2021-07-13 18:18:55,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:18:55,896 INFO L93 Difference]: Finished difference Result 60948 states and 256662 transitions. [2021-07-13 18:18:55,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 18:18:55,897 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 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 [2021-07-13 18:18:55,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:18:56,191 INFO L225 Difference]: With dead ends: 60948 [2021-07-13 18:18:56,191 INFO L226 Difference]: Without dead ends: 60606 [2021-07-13 18:18:56,192 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 216.2ms TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-07-13 18:18:56,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60606 states. [2021-07-13 18:18:57,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60606 to 53160. [2021-07-13 18:18:57,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53160 states, 53158 states have (on average 4.234621317581549) internal successors, (225104), 53159 states have internal predecessors, (225104), 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) [2021-07-13 18:18:58,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53160 states to 53160 states and 225104 transitions. [2021-07-13 18:18:58,377 INFO L78 Accepts]: Start accepts. Automaton has 53160 states and 225104 transitions. Word has length 62 [2021-07-13 18:18:58,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:18:58,377 INFO L482 AbstractCegarLoop]: Abstraction has 53160 states and 225104 transitions. [2021-07-13 18:18:58,377 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 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) [2021-07-13 18:18:58,378 INFO L276 IsEmpty]: Start isEmpty. Operand 53160 states and 225104 transitions. [2021-07-13 18:18:58,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-07-13 18:18:58,406 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:18:58,406 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] [2021-07-13 18:18:58,407 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-07-13 18:18:58,407 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:18:58,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:18:58,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1271581389, now seen corresponding path program 1 times [2021-07-13 18:18:58,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:18:58,421 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106691256] [2021-07-13 18:18:58,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:18:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:18:59,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:18:59,004 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:18:59,004 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106691256] [2021-07-13 18:18:59,004 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106691256] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:18:59,004 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:18:59,004 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:18:59,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42860593] [2021-07-13 18:18:59,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:18:59,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:18:59,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:18:59,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:18:59,006 INFO L87 Difference]: Start difference. First operand 53160 states and 225104 transitions. Second operand has 21 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 21 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) [2021-07-13 18:19:00,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:00,945 INFO L93 Difference]: Finished difference Result 64389 states and 274500 transitions. [2021-07-13 18:19:00,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-13 18:19:00,946 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 21 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 [2021-07-13 18:19:00,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:01,489 INFO L225 Difference]: With dead ends: 64389 [2021-07-13 18:19:01,489 INFO L226 Difference]: Without dead ends: 64119 [2021-07-13 18:19:01,489 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 995.6ms TimeCoverageRelationStatistics Valid=203, Invalid=1357, Unknown=0, NotChecked=0, Total=1560 [2021-07-13 18:19:01,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64119 states. [2021-07-13 18:19:03,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64119 to 54940. [2021-07-13 18:19:03,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54940 states, 54938 states have (on average 4.293439877680294) internal successors, (235873), 54939 states have internal predecessors, (235873), 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) [2021-07-13 18:19:03,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54940 states to 54940 states and 235873 transitions. [2021-07-13 18:19:03,491 INFO L78 Accepts]: Start accepts. Automaton has 54940 states and 235873 transitions. Word has length 65 [2021-07-13 18:19:03,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:03,492 INFO L482 AbstractCegarLoop]: Abstraction has 54940 states and 235873 transitions. [2021-07-13 18:19:03,492 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 21 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) [2021-07-13 18:19:03,492 INFO L276 IsEmpty]: Start isEmpty. Operand 54940 states and 235873 transitions. [2021-07-13 18:19:03,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-07-13 18:19:03,516 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:03,516 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] [2021-07-13 18:19:03,516 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-07-13 18:19:03,516 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:03,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:03,516 INFO L82 PathProgramCache]: Analyzing trace with hash -378444152, now seen corresponding path program 1 times [2021-07-13 18:19:03,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:03,517 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958296466] [2021-07-13 18:19:03,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:03,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:19:03,579 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:03,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958296466] [2021-07-13 18:19:03,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958296466] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:03,580 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:03,580 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-13 18:19:03,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747169459] [2021-07-13 18:19:03,580 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-13 18:19:03,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:03,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-13 18:19:03,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-07-13 18:19:03,581 INFO L87 Difference]: Start difference. First operand 54940 states and 235873 transitions. Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 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) [2021-07-13 18:19:04,179 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2021-07-13 18:19:04,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:04,953 INFO L93 Difference]: Finished difference Result 74107 states and 309485 transitions. [2021-07-13 18:19:04,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-13 18:19:04,953 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 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 [2021-07-13 18:19:04,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:05,648 INFO L225 Difference]: With dead ends: 74107 [2021-07-13 18:19:05,648 INFO L226 Difference]: Without dead ends: 67995 [2021-07-13 18:19:05,649 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 555.9ms TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:19:05,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67995 states. [2021-07-13 18:19:07,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67995 to 55174. [2021-07-13 18:19:07,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55174 states, 55172 states have (on average 4.289802798520989) internal successors, (236677), 55173 states have internal predecessors, (236677), 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) [2021-07-13 18:19:07,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55174 states to 55174 states and 236677 transitions. [2021-07-13 18:19:07,725 INFO L78 Accepts]: Start accepts. Automaton has 55174 states and 236677 transitions. Word has length 65 [2021-07-13 18:19:07,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:07,725 INFO L482 AbstractCegarLoop]: Abstraction has 55174 states and 236677 transitions. [2021-07-13 18:19:07,725 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 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) [2021-07-13 18:19:07,725 INFO L276 IsEmpty]: Start isEmpty. Operand 55174 states and 236677 transitions. [2021-07-13 18:19:07,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-07-13 18:19:07,752 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:07,752 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] [2021-07-13 18:19:07,752 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-07-13 18:19:07,753 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:07,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:07,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1113211634, now seen corresponding path program 2 times [2021-07-13 18:19:07,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:07,753 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636893260] [2021-07-13 18:19:07,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:07,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:19:07,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:07,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636893260] [2021-07-13 18:19:07,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636893260] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:07,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:07,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-13 18:19:07,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257998187] [2021-07-13 18:19:07,867 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-13 18:19:07,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:07,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-13 18:19:07,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-07-13 18:19:07,868 INFO L87 Difference]: Start difference. First operand 55174 states and 236677 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 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) [2021-07-13 18:19:09,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:09,480 INFO L93 Difference]: Finished difference Result 72794 states and 304360 transitions. [2021-07-13 18:19:09,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 18:19:09,480 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 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 [2021-07-13 18:19:09,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:09,860 INFO L225 Difference]: With dead ends: 72794 [2021-07-13 18:19:09,861 INFO L226 Difference]: Without dead ends: 66814 [2021-07-13 18:19:09,861 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 214.2ms TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:19:10,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66814 states. [2021-07-13 18:19:11,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66814 to 54455. [2021-07-13 18:19:11,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54455 states, 54453 states have (on average 4.294363946889979) internal successors, (233841), 54454 states have internal predecessors, (233841), 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) [2021-07-13 18:19:11,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54455 states to 54455 states and 233841 transitions. [2021-07-13 18:19:11,974 INFO L78 Accepts]: Start accepts. Automaton has 54455 states and 233841 transitions. Word has length 65 [2021-07-13 18:19:11,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:11,974 INFO L482 AbstractCegarLoop]: Abstraction has 54455 states and 233841 transitions. [2021-07-13 18:19:11,974 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 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) [2021-07-13 18:19:11,974 INFO L276 IsEmpty]: Start isEmpty. Operand 54455 states and 233841 transitions. [2021-07-13 18:19:12,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-07-13 18:19:12,012 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:12,012 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] [2021-07-13 18:19:12,012 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-07-13 18:19:12,012 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:12,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:12,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1543995883, now seen corresponding path program 1 times [2021-07-13 18:19:12,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:12,013 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340916597] [2021-07-13 18:19:12,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:12,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:19:12,869 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:12,869 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340916597] [2021-07-13 18:19:12,869 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340916597] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:12,869 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:12,870 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:19:12,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449494450] [2021-07-13 18:19:12,870 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:19:12,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:12,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:19:12,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:19:12,871 INFO L87 Difference]: Start difference. First operand 54455 states and 233841 transitions. Second operand has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:19:14,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:14,558 INFO L93 Difference]: Finished difference Result 65398 states and 279354 transitions. [2021-07-13 18:19:14,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 18:19:14,558 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-07-13 18:19:14,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:14,963 INFO L225 Difference]: With dead ends: 65398 [2021-07-13 18:19:14,964 INFO L226 Difference]: Without dead ends: 65056 [2021-07-13 18:19:14,964 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 723.6ms TimeCoverageRelationStatistics Valid=181, Invalid=941, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:19:15,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65056 states. [2021-07-13 18:19:16,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65056 to 54003. [2021-07-13 18:19:17,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54003 states, 54001 states have (on average 4.290235366011741) internal successors, (231677), 54002 states have internal predecessors, (231677), 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) [2021-07-13 18:19:17,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54003 states to 54003 states and 231677 transitions. [2021-07-13 18:19:17,435 INFO L78 Accepts]: Start accepts. Automaton has 54003 states and 231677 transitions. Word has length 67 [2021-07-13 18:19:17,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:17,435 INFO L482 AbstractCegarLoop]: Abstraction has 54003 states and 231677 transitions. [2021-07-13 18:19:17,435 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:19:17,435 INFO L276 IsEmpty]: Start isEmpty. Operand 54003 states and 231677 transitions. [2021-07-13 18:19:17,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-07-13 18:19:17,475 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:17,475 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] [2021-07-13 18:19:17,475 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-07-13 18:19:17,475 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:17,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:17,476 INFO L82 PathProgramCache]: Analyzing trace with hash 623437865, now seen corresponding path program 2 times [2021-07-13 18:19:17,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:17,477 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823664074] [2021-07-13 18:19:17,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:17,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:19:17,976 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:17,976 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823664074] [2021-07-13 18:19:17,976 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823664074] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:17,976 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:17,977 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:19:17,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370856416] [2021-07-13 18:19:17,977 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:19:17,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:17,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:19:17,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:19:17,978 INFO L87 Difference]: Start difference. First operand 54003 states and 231677 transitions. Second operand has 21 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 21 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:19:18,453 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 30 [2021-07-13 18:19:19,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:19,983 INFO L93 Difference]: Finished difference Result 60504 states and 257055 transitions. [2021-07-13 18:19:19,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-13 18:19:19,984 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 21 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-07-13 18:19:19,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:20,268 INFO L225 Difference]: With dead ends: 60504 [2021-07-13 18:19:20,268 INFO L226 Difference]: Without dead ends: 60162 [2021-07-13 18:19:20,269 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 1174.2ms TimeCoverageRelationStatistics Valid=214, Invalid=1268, Unknown=0, NotChecked=0, Total=1482 [2021-07-13 18:19:20,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60162 states. [2021-07-13 18:19:21,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60162 to 49129. [2021-07-13 18:19:21,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49129 states, 49127 states have (on average 4.269749832067905) internal successors, (209760), 49128 states have internal predecessors, (209760), 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) [2021-07-13 18:19:22,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49129 states to 49129 states and 209760 transitions. [2021-07-13 18:19:22,197 INFO L78 Accepts]: Start accepts. Automaton has 49129 states and 209760 transitions. Word has length 67 [2021-07-13 18:19:22,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:22,197 INFO L482 AbstractCegarLoop]: Abstraction has 49129 states and 209760 transitions. [2021-07-13 18:19:22,197 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 21 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:19:22,197 INFO L276 IsEmpty]: Start isEmpty. Operand 49129 states and 209760 transitions. [2021-07-13 18:19:22,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-13 18:19:22,624 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:22,624 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] [2021-07-13 18:19:22,624 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-07-13 18:19:22,624 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:22,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:22,625 INFO L82 PathProgramCache]: Analyzing trace with hash 2146199461, now seen corresponding path program 1 times [2021-07-13 18:19:22,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:22,625 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174300305] [2021-07-13 18:19:22,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:23,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:19:23,076 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:23,076 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174300305] [2021-07-13 18:19:23,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174300305] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:23,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:23,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:19:23,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70129812] [2021-07-13 18:19:23,077 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:19:23,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:23,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:19:23,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:19:23,077 INFO L87 Difference]: Start difference. First operand 49129 states and 209760 transitions. Second operand has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 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) [2021-07-13 18:19:24,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:24,742 INFO L93 Difference]: Finished difference Result 55203 states and 232776 transitions. [2021-07-13 18:19:24,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 18:19:24,742 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 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 [2021-07-13 18:19:24,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:24,982 INFO L225 Difference]: With dead ends: 55203 [2021-07-13 18:19:24,982 INFO L226 Difference]: Without dead ends: 53874 [2021-07-13 18:19:24,983 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 675.1ms TimeCoverageRelationStatistics Valid=151, Invalid=971, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:19:25,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53874 states. [2021-07-13 18:19:26,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53874 to 51756. [2021-07-13 18:19:26,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51756 states, 51754 states have (on average 4.2585693859411835) internal successors, (220398), 51755 states have internal predecessors, (220398), 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) [2021-07-13 18:19:27,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51756 states to 51756 states and 220398 transitions. [2021-07-13 18:19:27,255 INFO L78 Accepts]: Start accepts. Automaton has 51756 states and 220398 transitions. Word has length 68 [2021-07-13 18:19:27,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:27,255 INFO L482 AbstractCegarLoop]: Abstraction has 51756 states and 220398 transitions. [2021-07-13 18:19:27,255 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 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) [2021-07-13 18:19:27,256 INFO L276 IsEmpty]: Start isEmpty. Operand 51756 states and 220398 transitions. [2021-07-13 18:19:27,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-13 18:19:27,304 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:27,304 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] [2021-07-13 18:19:27,304 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-07-13 18:19:27,304 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:27,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:27,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1440294437, now seen corresponding path program 2 times [2021-07-13 18:19:27,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:27,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818990269] [2021-07-13 18:19:27,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:27,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:19:27,682 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:27,682 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818990269] [2021-07-13 18:19:27,682 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818990269] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:27,682 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:27,682 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:19:27,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110981886] [2021-07-13 18:19:27,683 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:19:27,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:27,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:19:27,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:19:27,684 INFO L87 Difference]: Start difference. First operand 51756 states and 220398 transitions. Second operand has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 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) [2021-07-13 18:19:29,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:29,300 INFO L93 Difference]: Finished difference Result 57720 states and 243136 transitions. [2021-07-13 18:19:29,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 18:19:29,300 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 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 [2021-07-13 18:19:29,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:29,795 INFO L225 Difference]: With dead ends: 57720 [2021-07-13 18:19:29,795 INFO L226 Difference]: Without dead ends: 56436 [2021-07-13 18:19:29,795 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 627.6ms TimeCoverageRelationStatistics Valid=151, Invalid=971, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:19:30,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56436 states. [2021-07-13 18:19:31,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56436 to 51756. [2021-07-13 18:19:31,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51756 states, 51754 states have (on average 4.2585693859411835) internal successors, (220398), 51755 states have internal predecessors, (220398), 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) [2021-07-13 18:19:31,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51756 states to 51756 states and 220398 transitions. [2021-07-13 18:19:31,719 INFO L78 Accepts]: Start accepts. Automaton has 51756 states and 220398 transitions. Word has length 68 [2021-07-13 18:19:31,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:31,720 INFO L482 AbstractCegarLoop]: Abstraction has 51756 states and 220398 transitions. [2021-07-13 18:19:31,720 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 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) [2021-07-13 18:19:31,720 INFO L276 IsEmpty]: Start isEmpty. Operand 51756 states and 220398 transitions. [2021-07-13 18:19:31,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-13 18:19:31,764 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:31,765 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:19:31,765 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-07-13 18:19:31,765 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:31,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:31,765 INFO L82 PathProgramCache]: Analyzing trace with hash 845570371, now seen corresponding path program 3 times [2021-07-13 18:19:31,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:31,765 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779972498] [2021-07-13 18:19:31,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:32,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:19:32,201 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:32,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779972498] [2021-07-13 18:19:32,202 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779972498] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:32,202 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:32,202 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 18:19:32,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284721382] [2021-07-13 18:19:32,202 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 18:19:32,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:32,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 18:19:32,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2021-07-13 18:19:32,203 INFO L87 Difference]: Start difference. First operand 51756 states and 220398 transitions. Second operand has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 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) [2021-07-13 18:19:34,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:34,195 INFO L93 Difference]: Finished difference Result 60467 states and 254345 transitions. [2021-07-13 18:19:34,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-13 18:19:34,195 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 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 [2021-07-13 18:19:34,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:34,514 INFO L225 Difference]: With dead ends: 60467 [2021-07-13 18:19:34,515 INFO L226 Difference]: Without dead ends: 59213 [2021-07-13 18:19:34,515 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 775.5ms TimeCoverageRelationStatistics Valid=190, Invalid=1216, Unknown=0, NotChecked=0, Total=1406 [2021-07-13 18:19:34,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59213 states. [2021-07-13 18:19:36,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59213 to 51756. [2021-07-13 18:19:36,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51756 states, 51754 states have (on average 4.2585693859411835) internal successors, (220398), 51755 states have internal predecessors, (220398), 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) [2021-07-13 18:19:36,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51756 states to 51756 states and 220398 transitions. [2021-07-13 18:19:36,503 INFO L78 Accepts]: Start accepts. Automaton has 51756 states and 220398 transitions. Word has length 68 [2021-07-13 18:19:36,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:36,503 INFO L482 AbstractCegarLoop]: Abstraction has 51756 states and 220398 transitions. [2021-07-13 18:19:36,503 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 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) [2021-07-13 18:19:36,503 INFO L276 IsEmpty]: Start isEmpty. Operand 51756 states and 220398 transitions. [2021-07-13 18:19:36,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-13 18:19:36,539 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:36,539 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] [2021-07-13 18:19:36,539 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-07-13 18:19:36,539 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:36,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:36,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1216348925, now seen corresponding path program 4 times [2021-07-13 18:19:36,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:36,540 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009830291] [2021-07-13 18:19:36,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:37,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:19:37,258 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:37,258 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009830291] [2021-07-13 18:19:37,258 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009830291] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:37,258 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:37,259 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 18:19:37,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801111798] [2021-07-13 18:19:37,259 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 18:19:37,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:37,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 18:19:37,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2021-07-13 18:19:37,260 INFO L87 Difference]: Start difference. First operand 51756 states and 220398 transitions. Second operand has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 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) [2021-07-13 18:19:38,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:38,802 INFO L93 Difference]: Finished difference Result 57645 states and 242941 transitions. [2021-07-13 18:19:38,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-13 18:19:38,802 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 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 [2021-07-13 18:19:38,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:39,064 INFO L225 Difference]: With dead ends: 57645 [2021-07-13 18:19:39,065 INFO L226 Difference]: Without dead ends: 56406 [2021-07-13 18:19:39,065 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 1006.8ms TimeCoverageRelationStatistics Valid=177, Invalid=1155, Unknown=0, NotChecked=0, Total=1332 [2021-07-13 18:19:39,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56406 states. [2021-07-13 18:19:40,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56406 to 51756. [2021-07-13 18:19:40,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51756 states, 51754 states have (on average 4.2585693859411835) internal successors, (220398), 51755 states have internal predecessors, (220398), 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) [2021-07-13 18:19:41,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51756 states to 51756 states and 220398 transitions. [2021-07-13 18:19:41,262 INFO L78 Accepts]: Start accepts. Automaton has 51756 states and 220398 transitions. Word has length 68 [2021-07-13 18:19:41,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:41,262 INFO L482 AbstractCegarLoop]: Abstraction has 51756 states and 220398 transitions. [2021-07-13 18:19:41,262 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 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) [2021-07-13 18:19:41,262 INFO L276 IsEmpty]: Start isEmpty. Operand 51756 states and 220398 transitions. [2021-07-13 18:19:41,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-13 18:19:41,311 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:41,311 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] [2021-07-13 18:19:41,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-07-13 18:19:41,312 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:41,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:41,312 INFO L82 PathProgramCache]: Analyzing trace with hash -503146337, now seen corresponding path program 5 times [2021-07-13 18:19:41,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:41,312 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454355847] [2021-07-13 18:19:41,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:41,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:19:41,934 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:41,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454355847] [2021-07-13 18:19:41,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454355847] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:41,934 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:41,934 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-13 18:19:41,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712372253] [2021-07-13 18:19:41,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-13 18:19:41,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:41,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-13 18:19:41,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-07-13 18:19:41,935 INFO L87 Difference]: Start difference. First operand 51756 states and 220398 transitions. Second operand has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 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) [2021-07-13 18:19:44,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:44,290 INFO L93 Difference]: Finished difference Result 59862 states and 251899 transitions. [2021-07-13 18:19:44,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 18:19:44,290 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 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 [2021-07-13 18:19:44,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:44,607 INFO L225 Difference]: With dead ends: 59862 [2021-07-13 18:19:44,607 INFO L226 Difference]: Without dead ends: 58623 [2021-07-13 18:19:44,608 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 1246.4ms TimeCoverageRelationStatistics Valid=213, Invalid=1593, Unknown=0, NotChecked=0, Total=1806 [2021-07-13 18:19:44,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58623 states. [2021-07-13 18:19:46,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58623 to 51081. [2021-07-13 18:19:46,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51081 states, 51079 states have (on average 4.252882789404648) internal successors, (217233), 51080 states have internal predecessors, (217233), 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) [2021-07-13 18:19:46,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51081 states to 51081 states and 217233 transitions. [2021-07-13 18:19:46,580 INFO L78 Accepts]: Start accepts. Automaton has 51081 states and 217233 transitions. Word has length 68 [2021-07-13 18:19:46,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:46,580 INFO L482 AbstractCegarLoop]: Abstraction has 51081 states and 217233 transitions. [2021-07-13 18:19:46,580 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 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) [2021-07-13 18:19:46,580 INFO L276 IsEmpty]: Start isEmpty. Operand 51081 states and 217233 transitions. [2021-07-13 18:19:46,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-13 18:19:46,617 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:46,617 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] [2021-07-13 18:19:46,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-07-13 18:19:46,617 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:46,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:46,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1285672051, now seen corresponding path program 6 times [2021-07-13 18:19:46,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:46,618 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732443056] [2021-07-13 18:19:46,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:47,319 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2021-07-13 18:19:47,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:19:47,528 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:47,529 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732443056] [2021-07-13 18:19:47,529 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732443056] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:47,529 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:47,529 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-13 18:19:47,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37692821] [2021-07-13 18:19:47,529 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 18:19:47,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:47,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 18:19:47,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-13 18:19:47,530 INFO L87 Difference]: Start difference. First operand 51081 states and 217233 transitions. Second operand has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 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) [2021-07-13 18:19:49,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:49,601 INFO L93 Difference]: Finished difference Result 57180 states and 240266 transitions. [2021-07-13 18:19:49,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 18:19:49,602 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 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 [2021-07-13 18:19:49,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:50,131 INFO L225 Difference]: With dead ends: 57180 [2021-07-13 18:19:50,131 INFO L226 Difference]: Without dead ends: 55851 [2021-07-13 18:19:50,131 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1623.8ms TimeCoverageRelationStatistics Valid=220, Invalid=1420, Unknown=0, NotChecked=0, Total=1640 [2021-07-13 18:19:50,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55851 states. [2021-07-13 18:19:52,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55851 to 51102. [2021-07-13 18:19:52,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51102 states, 51100 states have (on average 4.251859099804305) internal successors, (217270), 51101 states have internal predecessors, (217270), 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) [2021-07-13 18:19:52,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51102 states to 51102 states and 217270 transitions. [2021-07-13 18:19:52,467 INFO L78 Accepts]: Start accepts. Automaton has 51102 states and 217270 transitions. Word has length 68 [2021-07-13 18:19:52,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:52,467 INFO L482 AbstractCegarLoop]: Abstraction has 51102 states and 217270 transitions. [2021-07-13 18:19:52,468 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 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) [2021-07-13 18:19:52,468 INFO L276 IsEmpty]: Start isEmpty. Operand 51102 states and 217270 transitions. [2021-07-13 18:19:52,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-13 18:19:52,505 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:52,505 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] [2021-07-13 18:19:52,505 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-07-13 18:19:52,505 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:52,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:52,506 INFO L82 PathProgramCache]: Analyzing trace with hash -747687525, now seen corresponding path program 7 times [2021-07-13 18:19:52,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:52,506 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338879539] [2021-07-13 18:19:52,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:53,189 WARN L205 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 18 [2021-07-13 18:19:53,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:19:53,190 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:53,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338879539] [2021-07-13 18:19:53,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338879539] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:53,190 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:53,191 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-13 18:19:53,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721120568] [2021-07-13 18:19:53,191 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-13 18:19:53,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:53,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-13 18:19:53,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-07-13 18:19:53,192 INFO L87 Difference]: Start difference. First operand 51102 states and 217270 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 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) [2021-07-13 18:19:54,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:54,477 INFO L93 Difference]: Finished difference Result 57173 states and 240259 transitions. [2021-07-13 18:19:54,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-13 18:19:54,477 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 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 [2021-07-13 18:19:54,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:54,772 INFO L225 Difference]: With dead ends: 57173 [2021-07-13 18:19:54,773 INFO L226 Difference]: Without dead ends: 55844 [2021-07-13 18:19:54,773 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 835.2ms TimeCoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2021-07-13 18:19:54,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55844 states. [2021-07-13 18:19:56,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55844 to 51103. [2021-07-13 18:19:56,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51103 states, 51101 states have (on average 4.251795463885247) internal successors, (217271), 51102 states have internal predecessors, (217271), 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) [2021-07-13 18:19:56,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51103 states to 51103 states and 217271 transitions. [2021-07-13 18:19:56,732 INFO L78 Accepts]: Start accepts. Automaton has 51103 states and 217271 transitions. Word has length 68 [2021-07-13 18:19:56,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:19:56,732 INFO L482 AbstractCegarLoop]: Abstraction has 51103 states and 217271 transitions. [2021-07-13 18:19:56,732 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 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) [2021-07-13 18:19:56,732 INFO L276 IsEmpty]: Start isEmpty. Operand 51103 states and 217271 transitions. [2021-07-13 18:19:56,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-13 18:19:56,768 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:19:56,768 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] [2021-07-13 18:19:56,769 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-07-13 18:19:56,769 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:19:56,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:19:56,769 INFO L82 PathProgramCache]: Analyzing trace with hash 229412969, now seen corresponding path program 8 times [2021-07-13 18:19:56,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:19:56,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817291481] [2021-07-13 18:19:56,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:19:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:19:57,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:19:57,053 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:19:57,053 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817291481] [2021-07-13 18:19:57,053 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817291481] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:19:57,053 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:19:57,053 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-13 18:19:57,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540893628] [2021-07-13 18:19:57,054 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-13 18:19:57,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:19:57,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-13 18:19:57,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-07-13 18:19:57,054 INFO L87 Difference]: Start difference. First operand 51103 states and 217271 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 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) [2021-07-13 18:19:58,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:19:58,668 INFO L93 Difference]: Finished difference Result 57203 states and 240305 transitions. [2021-07-13 18:19:58,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 18:19:58,669 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 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 [2021-07-13 18:19:58,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:19:58,966 INFO L225 Difference]: With dead ends: 57203 [2021-07-13 18:19:58,966 INFO L226 Difference]: Without dead ends: 55874 [2021-07-13 18:19:58,967 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 717.9ms TimeCoverageRelationStatistics Valid=89, Invalid=511, Unknown=0, NotChecked=0, Total=600 [2021-07-13 18:19:59,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55874 states. [2021-07-13 18:20:00,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55874 to 51132. [2021-07-13 18:20:00,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51132 states, 51130 states have (on average 4.250264032857422) internal successors, (217316), 51131 states have internal predecessors, (217316), 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) [2021-07-13 18:20:00,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51132 states to 51132 states and 217316 transitions. [2021-07-13 18:20:00,913 INFO L78 Accepts]: Start accepts. Automaton has 51132 states and 217316 transitions. Word has length 68 [2021-07-13 18:20:00,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:00,913 INFO L482 AbstractCegarLoop]: Abstraction has 51132 states and 217316 transitions. [2021-07-13 18:20:00,913 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 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) [2021-07-13 18:20:00,913 INFO L276 IsEmpty]: Start isEmpty. Operand 51132 states and 217316 transitions. [2021-07-13 18:20:00,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-13 18:20:00,951 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:00,951 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] [2021-07-13 18:20:00,951 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-07-13 18:20:00,951 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:00,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:00,952 INFO L82 PathProgramCache]: Analyzing trace with hash -838870671, now seen corresponding path program 9 times [2021-07-13 18:20:00,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:00,952 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214845757] [2021-07-13 18:20:00,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:01,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:01,195 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:01,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214845757] [2021-07-13 18:20:01,195 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214845757] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:01,195 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:01,195 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-13 18:20:01,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060976669] [2021-07-13 18:20:01,195 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 18:20:01,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:01,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 18:20:01,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:20:01,196 INFO L87 Difference]: Start difference. First operand 51132 states and 217316 transitions. Second operand has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 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) [2021-07-13 18:20:02,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:02,298 INFO L93 Difference]: Finished difference Result 55837 states and 234184 transitions. [2021-07-13 18:20:02,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-13 18:20:02,298 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 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 [2021-07-13 18:20:02,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:02,553 INFO L225 Difference]: With dead ends: 55837 [2021-07-13 18:20:02,554 INFO L226 Difference]: Without dead ends: 54508 [2021-07-13 18:20:02,554 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 274.7ms TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:20:03,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54508 states. [2021-07-13 18:20:04,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54508 to 49737. [2021-07-13 18:20:04,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49737 states, 49735 states have (on average 4.245501156127475) internal successors, (211150), 49736 states have internal predecessors, (211150), 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) [2021-07-13 18:20:04,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49737 states to 49737 states and 211150 transitions. [2021-07-13 18:20:04,956 INFO L78 Accepts]: Start accepts. Automaton has 49737 states and 211150 transitions. Word has length 68 [2021-07-13 18:20:04,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:04,956 INFO L482 AbstractCegarLoop]: Abstraction has 49737 states and 211150 transitions. [2021-07-13 18:20:04,956 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 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) [2021-07-13 18:20:04,956 INFO L276 IsEmpty]: Start isEmpty. Operand 49737 states and 211150 transitions. [2021-07-13 18:20:05,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-07-13 18:20:05,026 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:05,026 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] [2021-07-13 18:20:05,026 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-07-13 18:20:05,026 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:05,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:05,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1123040390, now seen corresponding path program 1 times [2021-07-13 18:20:05,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:05,027 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633597334] [2021-07-13 18:20:05,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:05,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:05,573 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:05,573 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633597334] [2021-07-13 18:20:05,573 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633597334] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:05,573 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:05,573 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-13 18:20:05,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642152986] [2021-07-13 18:20:05,573 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-13 18:20:05,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:05,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-13 18:20:05,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-07-13 18:20:05,574 INFO L87 Difference]: Start difference. First operand 49737 states and 211150 transitions. Second operand has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 23 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) [2021-07-13 18:20:07,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:07,708 INFO L93 Difference]: Finished difference Result 57206 states and 239841 transitions. [2021-07-13 18:20:07,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-13 18:20:07,708 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 23 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 [2021-07-13 18:20:07,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:08,017 INFO L225 Difference]: With dead ends: 57206 [2021-07-13 18:20:08,018 INFO L226 Difference]: Without dead ends: 56084 [2021-07-13 18:20:08,018 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 1011.1ms TimeCoverageRelationStatistics Valid=213, Invalid=1509, Unknown=0, NotChecked=0, Total=1722 [2021-07-13 18:20:08,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56084 states. [2021-07-13 18:20:09,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56084 to 49737. [2021-07-13 18:20:09,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49737 states, 49735 states have (on average 4.244596360711772) internal successors, (211105), 49736 states have internal predecessors, (211105), 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) [2021-07-13 18:20:09,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49737 states to 49737 states and 211105 transitions. [2021-07-13 18:20:09,927 INFO L78 Accepts]: Start accepts. Automaton has 49737 states and 211105 transitions. Word has length 70 [2021-07-13 18:20:09,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:09,927 INFO L482 AbstractCegarLoop]: Abstraction has 49737 states and 211105 transitions. [2021-07-13 18:20:09,928 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 23 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) [2021-07-13 18:20:09,928 INFO L276 IsEmpty]: Start isEmpty. Operand 49737 states and 211105 transitions. [2021-07-13 18:20:09,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-07-13 18:20:09,972 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:09,972 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] [2021-07-13 18:20:09,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-07-13 18:20:09,972 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:09,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:09,972 INFO L82 PathProgramCache]: Analyzing trace with hash 415800452, now seen corresponding path program 2 times [2021-07-13 18:20:09,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:09,972 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17681472] [2021-07-13 18:20:09,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:10,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:10,844 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:10,844 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17681472] [2021-07-13 18:20:10,845 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17681472] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:10,845 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:10,845 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:20:10,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572050989] [2021-07-13 18:20:10,845 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:20:10,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:10,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:20:10,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:20:10,846 INFO L87 Difference]: Start difference. First operand 49737 states and 211105 transitions. Second operand has 21 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 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) [2021-07-13 18:20:12,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:12,441 INFO L93 Difference]: Finished difference Result 56867 states and 238439 transitions. [2021-07-13 18:20:12,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 18:20:12,442 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 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 [2021-07-13 18:20:12,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:12,701 INFO L225 Difference]: With dead ends: 56867 [2021-07-13 18:20:12,701 INFO L226 Difference]: Without dead ends: 55700 [2021-07-13 18:20:12,701 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1199.7ms TimeCoverageRelationStatistics Valid=164, Invalid=1168, Unknown=0, NotChecked=0, Total=1332 [2021-07-13 18:20:13,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55700 states. [2021-07-13 18:20:14,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55700 to 49329. [2021-07-13 18:20:14,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49329 states, 49327 states have (on average 4.248768422973219) internal successors, (209579), 49328 states have internal predecessors, (209579), 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) [2021-07-13 18:20:15,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49329 states to 49329 states and 209579 transitions. [2021-07-13 18:20:15,032 INFO L78 Accepts]: Start accepts. Automaton has 49329 states and 209579 transitions. Word has length 70 [2021-07-13 18:20:15,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:15,033 INFO L482 AbstractCegarLoop]: Abstraction has 49329 states and 209579 transitions. [2021-07-13 18:20:15,033 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 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) [2021-07-13 18:20:15,033 INFO L276 IsEmpty]: Start isEmpty. Operand 49329 states and 209579 transitions. [2021-07-13 18:20:15,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-07-13 18:20:15,105 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:15,106 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] [2021-07-13 18:20:15,106 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-07-13 18:20:15,106 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:15,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:15,106 INFO L82 PathProgramCache]: Analyzing trace with hash 622206956, now seen corresponding path program 3 times [2021-07-13 18:20:15,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:15,106 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365335451] [2021-07-13 18:20:15,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:15,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:15,518 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:15,518 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365335451] [2021-07-13 18:20:15,518 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365335451] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:15,518 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:15,518 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:20:15,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385093074] [2021-07-13 18:20:15,519 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:20:15,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:15,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:20:15,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:20:15,519 INFO L87 Difference]: Start difference. First operand 49329 states and 209579 transitions. Second operand has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 19 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) [2021-07-13 18:20:17,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:17,045 INFO L93 Difference]: Finished difference Result 53309 states and 223950 transitions. [2021-07-13 18:20:17,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:20:17,045 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 19 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 [2021-07-13 18:20:17,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:17,260 INFO L225 Difference]: With dead ends: 53309 [2021-07-13 18:20:17,260 INFO L226 Difference]: Without dead ends: 52526 [2021-07-13 18:20:17,261 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 646.4ms TimeCoverageRelationStatistics Valid=133, Invalid=923, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:20:17,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52526 states. [2021-07-13 18:20:18,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52526 to 46131. [2021-07-13 18:20:18,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46131 states, 46129 states have (on average 4.255609269656832) internal successors, (196307), 46130 states have internal predecessors, (196307), 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) [2021-07-13 18:20:19,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46131 states to 46131 states and 196307 transitions. [2021-07-13 18:20:19,356 INFO L78 Accepts]: Start accepts. Automaton has 46131 states and 196307 transitions. Word has length 70 [2021-07-13 18:20:19,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:19,357 INFO L482 AbstractCegarLoop]: Abstraction has 46131 states and 196307 transitions. [2021-07-13 18:20:19,357 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 19 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) [2021-07-13 18:20:19,357 INFO L276 IsEmpty]: Start isEmpty. Operand 46131 states and 196307 transitions. [2021-07-13 18:20:19,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-07-13 18:20:19,444 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:19,445 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, 1] [2021-07-13 18:20:19,445 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-07-13 18:20:19,445 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:19,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:19,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1465651789, now seen corresponding path program 1 times [2021-07-13 18:20:19,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:19,445 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166958492] [2021-07-13 18:20:19,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:19,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:19,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:19,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166958492] [2021-07-13 18:20:19,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166958492] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:20,000 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:20,000 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-13 18:20:20,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593776892] [2021-07-13 18:20:20,000 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-13 18:20:20,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:20,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-13 18:20:20,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-07-13 18:20:20,001 INFO L87 Difference]: Start difference. First operand 46131 states and 196307 transitions. Second operand has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 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) [2021-07-13 18:20:20,880 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-07-13 18:20:21,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:21,965 INFO L93 Difference]: Finished difference Result 46335 states and 194500 transitions. [2021-07-13 18:20:21,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-13 18:20:21,966 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 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 71 [2021-07-13 18:20:21,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:22,346 INFO L225 Difference]: With dead ends: 46335 [2021-07-13 18:20:22,346 INFO L226 Difference]: Without dead ends: 45255 [2021-07-13 18:20:22,346 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 1280.0ms TimeCoverageRelationStatistics Valid=243, Invalid=1649, Unknown=0, NotChecked=0, Total=1892 [2021-07-13 18:20:22,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45255 states. [2021-07-13 18:20:23,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45255 to 40527. [2021-07-13 18:20:23,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40527 states, 40525 states have (on average 4.238864898210981) internal successors, (171780), 40526 states have internal predecessors, (171780), 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) [2021-07-13 18:20:23,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40527 states to 40527 states and 171780 transitions. [2021-07-13 18:20:23,569 INFO L78 Accepts]: Start accepts. Automaton has 40527 states and 171780 transitions. Word has length 71 [2021-07-13 18:20:23,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:23,569 INFO L482 AbstractCegarLoop]: Abstraction has 40527 states and 171780 transitions. [2021-07-13 18:20:23,569 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 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) [2021-07-13 18:20:23,569 INFO L276 IsEmpty]: Start isEmpty. Operand 40527 states and 171780 transitions. [2021-07-13 18:20:24,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-07-13 18:20:24,013 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:24,013 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, 1] [2021-07-13 18:20:24,013 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-07-13 18:20:24,013 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:24,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:24,014 INFO L82 PathProgramCache]: Analyzing trace with hash -2092964202, now seen corresponding path program 1 times [2021-07-13 18:20:24,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:24,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919442605] [2021-07-13 18:20:24,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:24,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:24,077 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:24,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919442605] [2021-07-13 18:20:24,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919442605] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:24,077 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:24,077 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-13 18:20:24,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173337841] [2021-07-13 18:20:24,077 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-13 18:20:24,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:24,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-13 18:20:24,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-07-13 18:20:24,078 INFO L87 Difference]: Start difference. First operand 40527 states and 171780 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 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) [2021-07-13 18:20:25,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:25,741 INFO L93 Difference]: Finished difference Result 62148 states and 255238 transitions. [2021-07-13 18:20:25,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 18:20:25,741 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 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 71 [2021-07-13 18:20:25,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:26,156 INFO L225 Difference]: With dead ends: 62148 [2021-07-13 18:20:26,156 INFO L226 Difference]: Without dead ends: 47082 [2021-07-13 18:20:26,158 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 165.2ms TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2021-07-13 18:20:26,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47082 states. [2021-07-13 18:20:27,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47082 to 37407. [2021-07-13 18:20:27,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37407 states, 37405 states have (on average 4.195535356235798) internal successors, (156934), 37406 states have internal predecessors, (156934), 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) [2021-07-13 18:20:27,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37407 states to 37407 states and 156934 transitions. [2021-07-13 18:20:27,560 INFO L78 Accepts]: Start accepts. Automaton has 37407 states and 156934 transitions. Word has length 71 [2021-07-13 18:20:27,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:27,561 INFO L482 AbstractCegarLoop]: Abstraction has 37407 states and 156934 transitions. [2021-07-13 18:20:27,561 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 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) [2021-07-13 18:20:27,561 INFO L276 IsEmpty]: Start isEmpty. Operand 37407 states and 156934 transitions. [2021-07-13 18:20:27,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-07-13 18:20:27,923 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:27,923 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, 1] [2021-07-13 18:20:27,923 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-07-13 18:20:27,923 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:27,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:27,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1976839662, now seen corresponding path program 2 times [2021-07-13 18:20:27,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:27,924 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328864496] [2021-07-13 18:20:27,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:28,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:28,037 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:28,037 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328864496] [2021-07-13 18:20:28,037 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328864496] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:28,037 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:28,037 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-13 18:20:28,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887407135] [2021-07-13 18:20:28,037 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-13 18:20:28,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:28,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-13 18:20:28,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-07-13 18:20:28,038 INFO L87 Difference]: Start difference. First operand 37407 states and 156934 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 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) [2021-07-13 18:20:28,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:28,995 INFO L93 Difference]: Finished difference Result 52101 states and 213437 transitions. [2021-07-13 18:20:28,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-13 18:20:28,996 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 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 71 [2021-07-13 18:20:28,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:29,198 INFO L225 Difference]: With dead ends: 52101 [2021-07-13 18:20:29,198 INFO L226 Difference]: Without dead ends: 45375 [2021-07-13 18:20:29,198 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 207.9ms TimeCoverageRelationStatistics Valid=146, Invalid=316, Unknown=0, NotChecked=0, Total=462 [2021-07-13 18:20:29,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45375 states. [2021-07-13 18:20:30,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45375 to 37416. [2021-07-13 18:20:30,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37416 states, 37414 states have (on average 4.195648687657027) internal successors, (156976), 37415 states have internal predecessors, (156976), 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) [2021-07-13 18:20:30,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37416 states to 37416 states and 156976 transitions. [2021-07-13 18:20:30,363 INFO L78 Accepts]: Start accepts. Automaton has 37416 states and 156976 transitions. Word has length 71 [2021-07-13 18:20:30,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:30,364 INFO L482 AbstractCegarLoop]: Abstraction has 37416 states and 156976 transitions. [2021-07-13 18:20:30,364 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 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) [2021-07-13 18:20:30,364 INFO L276 IsEmpty]: Start isEmpty. Operand 37416 states and 156976 transitions. [2021-07-13 18:20:30,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-07-13 18:20:30,401 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:30,401 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, 1] [2021-07-13 18:20:30,401 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-07-13 18:20:30,401 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:30,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:30,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1534265332, now seen corresponding path program 3 times [2021-07-13 18:20:30,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:30,401 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000506340] [2021-07-13 18:20:30,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:30,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:30,825 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:30,825 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000506340] [2021-07-13 18:20:30,825 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000506340] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:30,825 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:30,825 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-13 18:20:30,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597089004] [2021-07-13 18:20:30,826 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-13 18:20:30,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:30,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-13 18:20:30,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-07-13 18:20:30,827 INFO L87 Difference]: Start difference. First operand 37416 states and 156976 transitions. Second operand has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 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) [2021-07-13 18:20:31,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:31,587 INFO L93 Difference]: Finished difference Result 47706 states and 195499 transitions. [2021-07-13 18:20:31,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-13 18:20:31,587 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 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 71 [2021-07-13 18:20:31,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:32,043 INFO L225 Difference]: With dead ends: 47706 [2021-07-13 18:20:32,043 INFO L226 Difference]: Without dead ends: 42690 [2021-07-13 18:20:32,043 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 305.9ms TimeCoverageRelationStatistics Valid=169, Invalid=383, Unknown=0, NotChecked=0, Total=552 [2021-07-13 18:20:32,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42690 states. [2021-07-13 18:20:32,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42690 to 34959. [2021-07-13 18:20:32,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34959 states, 34957 states have (on average 4.183539777440856) internal successors, (146244), 34958 states have internal predecessors, (146244), 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) [2021-07-13 18:20:33,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34959 states to 34959 states and 146244 transitions. [2021-07-13 18:20:33,090 INFO L78 Accepts]: Start accepts. Automaton has 34959 states and 146244 transitions. Word has length 71 [2021-07-13 18:20:33,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:33,090 INFO L482 AbstractCegarLoop]: Abstraction has 34959 states and 146244 transitions. [2021-07-13 18:20:33,090 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 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) [2021-07-13 18:20:33,090 INFO L276 IsEmpty]: Start isEmpty. Operand 34959 states and 146244 transitions. [2021-07-13 18:20:33,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-07-13 18:20:33,134 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:33,134 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, 1, 1, 1] [2021-07-13 18:20:33,134 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-07-13 18:20:33,134 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:33,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:33,134 INFO L82 PathProgramCache]: Analyzing trace with hash -340836015, now seen corresponding path program 1 times [2021-07-13 18:20:33,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:33,134 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057930102] [2021-07-13 18:20:33,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:33,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:33,981 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:33,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057930102] [2021-07-13 18:20:33,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057930102] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:33,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:33,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 18:20:33,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341977867] [2021-07-13 18:20:33,981 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 18:20:33,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:33,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 18:20:33,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2021-07-13 18:20:33,982 INFO L87 Difference]: Start difference. First operand 34959 states and 146244 transitions. Second operand has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 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) [2021-07-13 18:20:35,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:35,411 INFO L93 Difference]: Finished difference Result 43893 states and 182738 transitions. [2021-07-13 18:20:35,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-13 18:20:35,412 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 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 73 [2021-07-13 18:20:35,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:35,574 INFO L225 Difference]: With dead ends: 43893 [2021-07-13 18:20:35,574 INFO L226 Difference]: Without dead ends: 43551 [2021-07-13 18:20:35,575 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1177.5ms TimeCoverageRelationStatistics Valid=225, Invalid=1181, Unknown=0, NotChecked=0, Total=1406 [2021-07-13 18:20:35,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43551 states. [2021-07-13 18:20:36,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43551 to 36897. [2021-07-13 18:20:36,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36897 states, 36895 states have (on average 4.217509147580973) internal successors, (155605), 36896 states have internal predecessors, (155605), 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) [2021-07-13 18:20:36,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36897 states to 36897 states and 155605 transitions. [2021-07-13 18:20:36,932 INFO L78 Accepts]: Start accepts. Automaton has 36897 states and 155605 transitions. Word has length 73 [2021-07-13 18:20:36,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:36,933 INFO L482 AbstractCegarLoop]: Abstraction has 36897 states and 155605 transitions. [2021-07-13 18:20:36,933 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 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) [2021-07-13 18:20:36,933 INFO L276 IsEmpty]: Start isEmpty. Operand 36897 states and 155605 transitions. [2021-07-13 18:20:36,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-07-13 18:20:36,979 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:36,979 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, 1, 1, 1] [2021-07-13 18:20:36,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-07-13 18:20:36,979 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:36,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:36,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1261394033, now seen corresponding path program 2 times [2021-07-13 18:20:36,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:36,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077845280] [2021-07-13 18:20:36,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:37,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:37,616 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:37,616 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077845280] [2021-07-13 18:20:37,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077845280] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:37,616 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:37,616 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-13 18:20:37,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775206896] [2021-07-13 18:20:37,616 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-13 18:20:37,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:37,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-13 18:20:37,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-07-13 18:20:37,617 INFO L87 Difference]: Start difference. First operand 36897 states and 155605 transitions. Second operand has 23 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 23 states have internal predecessors, (73), 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) [2021-07-13 18:20:37,992 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-07-13 18:20:39,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:39,632 INFO L93 Difference]: Finished difference Result 37791 states and 157181 transitions. [2021-07-13 18:20:39,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-13 18:20:39,632 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 23 states have internal predecessors, (73), 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 73 [2021-07-13 18:20:39,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:39,767 INFO L225 Difference]: With dead ends: 37791 [2021-07-13 18:20:39,767 INFO L226 Difference]: Without dead ends: 35991 [2021-07-13 18:20:39,768 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 1411.8ms TimeCoverageRelationStatistics Valid=293, Invalid=1777, Unknown=0, NotChecked=0, Total=2070 [2021-07-13 18:20:39,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35991 states. [2021-07-13 18:20:40,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35991 to 29025. [2021-07-13 18:20:40,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29025 states, 29023 states have (on average 4.175447059228888) internal successors, (121184), 29024 states have internal predecessors, (121184), 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) [2021-07-13 18:20:40,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29025 states to 29025 states and 121184 transitions. [2021-07-13 18:20:40,667 INFO L78 Accepts]: Start accepts. Automaton has 29025 states and 121184 transitions. Word has length 73 [2021-07-13 18:20:40,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:40,667 INFO L482 AbstractCegarLoop]: Abstraction has 29025 states and 121184 transitions. [2021-07-13 18:20:40,667 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 23 states have internal predecessors, (73), 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) [2021-07-13 18:20:40,667 INFO L276 IsEmpty]: Start isEmpty. Operand 29025 states and 121184 transitions. [2021-07-13 18:20:40,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-07-13 18:20:40,938 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:40,938 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, 1, 1, 1] [2021-07-13 18:20:40,938 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-07-13 18:20:40,938 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:40,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:40,938 INFO L82 PathProgramCache]: Analyzing trace with hash 426774956, now seen corresponding path program 1 times [2021-07-13 18:20:40,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:40,939 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319504579] [2021-07-13 18:20:40,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:41,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:41,804 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:41,804 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319504579] [2021-07-13 18:20:41,804 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319504579] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:41,804 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:41,804 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-13 18:20:41,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938429698] [2021-07-13 18:20:41,805 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-13 18:20:41,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:41,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-13 18:20:41,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2021-07-13 18:20:41,805 INFO L87 Difference]: Start difference. First operand 29025 states and 121184 transitions. Second operand has 26 states, 26 states have (on average 2.8076923076923075) internal successors, (73), 26 states have internal predecessors, (73), 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) [2021-07-13 18:20:44,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:44,603 INFO L93 Difference]: Finished difference Result 38504 states and 159667 transitions. [2021-07-13 18:20:44,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 18:20:44,604 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.8076923076923075) internal successors, (73), 26 states have internal predecessors, (73), 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 73 [2021-07-13 18:20:44,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:44,727 INFO L225 Difference]: With dead ends: 38504 [2021-07-13 18:20:44,728 INFO L226 Difference]: Without dead ends: 34922 [2021-07-13 18:20:44,728 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 1877.8ms TimeCoverageRelationStatistics Valid=254, Invalid=2296, Unknown=0, NotChecked=0, Total=2550 [2021-07-13 18:20:44,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34922 states. [2021-07-13 18:20:45,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34922 to 29592. [2021-07-13 18:20:45,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29592 states, 29590 states have (on average 4.223893207164583) internal successors, (124985), 29591 states have internal predecessors, (124985), 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) [2021-07-13 18:20:45,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29592 states to 29592 states and 124985 transitions. [2021-07-13 18:20:45,839 INFO L78 Accepts]: Start accepts. Automaton has 29592 states and 124985 transitions. Word has length 73 [2021-07-13 18:20:45,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:45,840 INFO L482 AbstractCegarLoop]: Abstraction has 29592 states and 124985 transitions. [2021-07-13 18:20:45,840 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.8076923076923075) internal successors, (73), 26 states have internal predecessors, (73), 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) [2021-07-13 18:20:45,840 INFO L276 IsEmpty]: Start isEmpty. Operand 29592 states and 124985 transitions. [2021-07-13 18:20:45,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-07-13 18:20:45,909 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:45,909 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, 1, 1, 1] [2021-07-13 18:20:45,909 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-07-13 18:20:45,909 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:45,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:45,909 INFO L82 PathProgramCache]: Analyzing trace with hash -492337874, now seen corresponding path program 2 times [2021-07-13 18:20:45,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:45,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385057813] [2021-07-13 18:20:45,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:46,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:46,614 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:46,614 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385057813] [2021-07-13 18:20:46,614 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385057813] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:46,614 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:46,614 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-07-13 18:20:46,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137067278] [2021-07-13 18:20:46,615 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-13 18:20:46,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:46,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-13 18:20:46,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-07-13 18:20:46,615 INFO L87 Difference]: Start difference. First operand 29592 states and 124985 transitions. Second operand has 25 states, 25 states have (on average 2.92) internal successors, (73), 25 states have internal predecessors, (73), 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) [2021-07-13 18:20:48,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:48,336 INFO L93 Difference]: Finished difference Result 29856 states and 124699 transitions. [2021-07-13 18:20:48,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 18:20:48,336 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.92) internal successors, (73), 25 states have internal predecessors, (73), 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 73 [2021-07-13 18:20:48,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:48,450 INFO L225 Difference]: With dead ends: 29856 [2021-07-13 18:20:48,450 INFO L226 Difference]: Without dead ends: 27300 [2021-07-13 18:20:48,451 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 1184.6ms TimeCoverageRelationStatistics Valid=245, Invalid=1825, Unknown=0, NotChecked=0, Total=2070 [2021-07-13 18:20:48,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27300 states. [2021-07-13 18:20:49,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27300 to 19407. [2021-07-13 18:20:49,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19407 states, 19405 states have (on average 4.1668126771450655) internal successors, (80857), 19406 states have internal predecessors, (80857), 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) [2021-07-13 18:20:49,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19407 states to 19407 states and 80857 transitions. [2021-07-13 18:20:49,100 INFO L78 Accepts]: Start accepts. Automaton has 19407 states and 80857 transitions. Word has length 73 [2021-07-13 18:20:49,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:49,100 INFO L482 AbstractCegarLoop]: Abstraction has 19407 states and 80857 transitions. [2021-07-13 18:20:49,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.92) internal successors, (73), 25 states have internal predecessors, (73), 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) [2021-07-13 18:20:49,101 INFO L276 IsEmpty]: Start isEmpty. Operand 19407 states and 80857 transitions. [2021-07-13 18:20:49,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:20:49,129 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:49,129 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, 1, 1, 1, 1] [2021-07-13 18:20:49,129 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-07-13 18:20:49,129 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:49,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:49,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1399104941, now seen corresponding path program 1 times [2021-07-13 18:20:49,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:49,130 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338929558] [2021-07-13 18:20:49,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:49,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:49,678 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:49,678 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338929558] [2021-07-13 18:20:49,679 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338929558] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:49,679 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:49,679 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:20:49,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902850195] [2021-07-13 18:20:49,679 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:20:49,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:49,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:20:49,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:20:49,680 INFO L87 Difference]: Start difference. First operand 19407 states and 80857 transitions. Second operand has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 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) [2021-07-13 18:20:50,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:50,835 INFO L93 Difference]: Finished difference Result 23048 states and 93525 transitions. [2021-07-13 18:20:50,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 18:20:50,836 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 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 74 [2021-07-13 18:20:50,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:50,909 INFO L225 Difference]: With dead ends: 23048 [2021-07-13 18:20:50,909 INFO L226 Difference]: Without dead ends: 22184 [2021-07-13 18:20:50,909 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 650.0ms TimeCoverageRelationStatistics Valid=145, Invalid=1045, Unknown=0, NotChecked=0, Total=1190 [2021-07-13 18:20:50,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22184 states. [2021-07-13 18:20:51,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22184 to 21764. [2021-07-13 18:20:51,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21764 states, 21762 states have (on average 4.107251171767301) internal successors, (89382), 21763 states have internal predecessors, (89382), 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) [2021-07-13 18:20:51,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21764 states to 21764 states and 89382 transitions. [2021-07-13 18:20:51,545 INFO L78 Accepts]: Start accepts. Automaton has 21764 states and 89382 transitions. Word has length 74 [2021-07-13 18:20:51,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:51,545 INFO L482 AbstractCegarLoop]: Abstraction has 21764 states and 89382 transitions. [2021-07-13 18:20:51,545 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 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) [2021-07-13 18:20:51,546 INFO L276 IsEmpty]: Start isEmpty. Operand 21764 states and 89382 transitions. [2021-07-13 18:20:51,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:20:51,577 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:51,577 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:20:51,577 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-07-13 18:20:51,577 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:51,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:51,578 INFO L82 PathProgramCache]: Analyzing trace with hash 300304151, now seen corresponding path program 2 times [2021-07-13 18:20:51,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:51,578 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356423057] [2021-07-13 18:20:51,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:51,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:51,982 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:51,982 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356423057] [2021-07-13 18:20:51,982 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356423057] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:51,982 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:51,982 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:20:51,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441595444] [2021-07-13 18:20:51,982 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:20:51,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:51,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:20:51,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:20:51,983 INFO L87 Difference]: Start difference. First operand 21764 states and 89382 transitions. Second operand has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 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) [2021-07-13 18:20:53,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:53,097 INFO L93 Difference]: Finished difference Result 25355 states and 101940 transitions. [2021-07-13 18:20:53,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 18:20:53,097 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 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 74 [2021-07-13 18:20:53,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:53,176 INFO L225 Difference]: With dead ends: 25355 [2021-07-13 18:20:53,176 INFO L226 Difference]: Without dead ends: 24491 [2021-07-13 18:20:53,176 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 800.0ms TimeCoverageRelationStatistics Valid=144, Invalid=1046, Unknown=0, NotChecked=0, Total=1190 [2021-07-13 18:20:53,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24491 states. [2021-07-13 18:20:53,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24491 to 21764. [2021-07-13 18:20:53,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21764 states, 21762 states have (on average 4.107251171767301) internal successors, (89382), 21763 states have internal predecessors, (89382), 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) [2021-07-13 18:20:53,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21764 states to 21764 states and 89382 transitions. [2021-07-13 18:20:53,790 INFO L78 Accepts]: Start accepts. Automaton has 21764 states and 89382 transitions. Word has length 74 [2021-07-13 18:20:53,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:53,796 INFO L482 AbstractCegarLoop]: Abstraction has 21764 states and 89382 transitions. [2021-07-13 18:20:53,797 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 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) [2021-07-13 18:20:53,797 INFO L276 IsEmpty]: Start isEmpty. Operand 21764 states and 89382 transitions. [2021-07-13 18:20:53,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:20:53,837 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:53,837 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, 1, 1, 1, 1] [2021-07-13 18:20:53,837 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-07-13 18:20:53,837 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:53,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:53,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1980704113, now seen corresponding path program 3 times [2021-07-13 18:20:53,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:53,838 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157720952] [2021-07-13 18:20:53,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:54,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:54,291 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:54,291 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157720952] [2021-07-13 18:20:54,291 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157720952] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:54,291 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:54,291 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:20:54,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486009080] [2021-07-13 18:20:54,292 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:20:54,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:54,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:20:54,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:20:54,292 INFO L87 Difference]: Start difference. First operand 21764 states and 89382 transitions. Second operand has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 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) [2021-07-13 18:20:55,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:55,688 INFO L93 Difference]: Finished difference Result 27702 states and 110487 transitions. [2021-07-13 18:20:55,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-13 18:20:55,689 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 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 74 [2021-07-13 18:20:55,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:55,926 INFO L225 Difference]: With dead ends: 27702 [2021-07-13 18:20:55,927 INFO L226 Difference]: Without dead ends: 26838 [2021-07-13 18:20:55,927 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 978.5ms TimeCoverageRelationStatistics Valid=190, Invalid=1370, Unknown=0, NotChecked=0, Total=1560 [2021-07-13 18:20:55,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26838 states. [2021-07-13 18:20:56,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26838 to 21764. [2021-07-13 18:20:56,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21764 states, 21762 states have (on average 4.107251171767301) internal successors, (89382), 21763 states have internal predecessors, (89382), 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) [2021-07-13 18:20:56,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21764 states to 21764 states and 89382 transitions. [2021-07-13 18:20:56,586 INFO L78 Accepts]: Start accepts. Automaton has 21764 states and 89382 transitions. Word has length 74 [2021-07-13 18:20:56,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:56,586 INFO L482 AbstractCegarLoop]: Abstraction has 21764 states and 89382 transitions. [2021-07-13 18:20:56,586 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 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) [2021-07-13 18:20:56,586 INFO L276 IsEmpty]: Start isEmpty. Operand 21764 states and 89382 transitions. [2021-07-13 18:20:56,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:20:56,627 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:56,627 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, 1, 1, 1, 1] [2021-07-13 18:20:56,627 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-07-13 18:20:56,627 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:56,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:56,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1873781855, now seen corresponding path program 4 times [2021-07-13 18:20:56,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:56,628 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221877184] [2021-07-13 18:20:56,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:57,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:57,097 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:57,097 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221877184] [2021-07-13 18:20:57,097 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221877184] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:57,097 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:57,097 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:20:57,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128057638] [2021-07-13 18:20:57,098 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:20:57,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:57,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:20:57,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:20:57,098 INFO L87 Difference]: Start difference. First operand 21764 states and 89382 transitions. Second operand has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 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) [2021-07-13 18:20:58,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:20:58,448 INFO L93 Difference]: Finished difference Result 25185 states and 101429 transitions. [2021-07-13 18:20:58,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-13 18:20:58,448 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 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 74 [2021-07-13 18:20:58,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:20:58,523 INFO L225 Difference]: With dead ends: 25185 [2021-07-13 18:20:58,523 INFO L226 Difference]: Without dead ends: 24321 [2021-07-13 18:20:58,524 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 821.2ms TimeCoverageRelationStatistics Valid=190, Invalid=1370, Unknown=0, NotChecked=0, Total=1560 [2021-07-13 18:20:58,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24321 states. [2021-07-13 18:20:59,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24321 to 21764. [2021-07-13 18:20:59,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21764 states, 21762 states have (on average 4.107251171767301) internal successors, (89382), 21763 states have internal predecessors, (89382), 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) [2021-07-13 18:20:59,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21764 states to 21764 states and 89382 transitions. [2021-07-13 18:20:59,133 INFO L78 Accepts]: Start accepts. Automaton has 21764 states and 89382 transitions. Word has length 74 [2021-07-13 18:20:59,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:20:59,133 INFO L482 AbstractCegarLoop]: Abstraction has 21764 states and 89382 transitions. [2021-07-13 18:20:59,133 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 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) [2021-07-13 18:20:59,133 INFO L276 IsEmpty]: Start isEmpty. Operand 21764 states and 89382 transitions. [2021-07-13 18:20:59,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:20:59,164 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:20:59,164 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, 1, 1, 1, 1] [2021-07-13 18:20:59,164 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-07-13 18:20:59,164 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:20:59,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:20:59,164 INFO L82 PathProgramCache]: Analyzing trace with hash 353605117, now seen corresponding path program 5 times [2021-07-13 18:20:59,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:20:59,164 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464158510] [2021-07-13 18:20:59,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:20:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:20:59,980 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 18 [2021-07-13 18:20:59,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:20:59,982 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:20:59,982 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464158510] [2021-07-13 18:20:59,982 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464158510] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:20:59,982 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:20:59,982 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-13 18:20:59,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687036157] [2021-07-13 18:20:59,982 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-13 18:20:59,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:20:59,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-13 18:20:59,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-07-13 18:20:59,983 INFO L87 Difference]: Start difference. First operand 21764 states and 89382 transitions. Second operand has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 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) [2021-07-13 18:21:01,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:01,494 INFO L93 Difference]: Finished difference Result 28422 states and 114253 transitions. [2021-07-13 18:21:01,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 18:21:01,494 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 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 74 [2021-07-13 18:21:01,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:01,589 INFO L225 Difference]: With dead ends: 28422 [2021-07-13 18:21:01,589 INFO L226 Difference]: Without dead ends: 27558 [2021-07-13 18:21:01,590 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 1264.9ms TimeCoverageRelationStatistics Valid=244, Invalid=1736, Unknown=0, NotChecked=0, Total=1980 [2021-07-13 18:21:01,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27558 states. [2021-07-13 18:21:02,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27558 to 21764. [2021-07-13 18:21:02,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21764 states, 21762 states have (on average 4.107251171767301) internal successors, (89382), 21763 states have internal predecessors, (89382), 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) [2021-07-13 18:21:02,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21764 states to 21764 states and 89382 transitions. [2021-07-13 18:21:02,225 INFO L78 Accepts]: Start accepts. Automaton has 21764 states and 89382 transitions. Word has length 74 [2021-07-13 18:21:02,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:02,225 INFO L482 AbstractCegarLoop]: Abstraction has 21764 states and 89382 transitions. [2021-07-13 18:21:02,225 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 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) [2021-07-13 18:21:02,225 INFO L276 IsEmpty]: Start isEmpty. Operand 21764 states and 89382 transitions. [2021-07-13 18:21:02,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:21:02,256 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:02,256 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, 1, 1, 1, 1] [2021-07-13 18:21:02,256 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-07-13 18:21:02,257 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:02,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:02,257 INFO L82 PathProgramCache]: Analyzing trace with hash 455637243, now seen corresponding path program 6 times [2021-07-13 18:21:02,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:02,257 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611946160] [2021-07-13 18:21:02,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:02,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:02,855 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:02,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611946160] [2021-07-13 18:21:02,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611946160] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:02,855 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:02,855 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-13 18:21:02,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740760742] [2021-07-13 18:21:02,856 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-13 18:21:02,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:02,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-13 18:21:02,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-07-13 18:21:02,857 INFO L87 Difference]: Start difference. First operand 21764 states and 89382 transitions. Second operand has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 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) [2021-07-13 18:21:04,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:04,253 INFO L93 Difference]: Finished difference Result 25035 states and 100964 transitions. [2021-07-13 18:21:04,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 18:21:04,254 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 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 74 [2021-07-13 18:21:04,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:04,453 INFO L225 Difference]: With dead ends: 25035 [2021-07-13 18:21:04,453 INFO L226 Difference]: Without dead ends: 24171 [2021-07-13 18:21:04,454 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 976.1ms TimeCoverageRelationStatistics Valid=231, Invalid=1661, Unknown=0, NotChecked=0, Total=1892 [2021-07-13 18:21:04,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24171 states. [2021-07-13 18:21:04,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24171 to 21764. [2021-07-13 18:21:04,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21764 states, 21762 states have (on average 4.107251171767301) internal successors, (89382), 21763 states have internal predecessors, (89382), 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) [2021-07-13 18:21:04,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21764 states to 21764 states and 89382 transitions. [2021-07-13 18:21:04,929 INFO L78 Accepts]: Start accepts. Automaton has 21764 states and 89382 transitions. Word has length 74 [2021-07-13 18:21:04,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:04,929 INFO L482 AbstractCegarLoop]: Abstraction has 21764 states and 89382 transitions. [2021-07-13 18:21:04,929 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 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) [2021-07-13 18:21:04,929 INFO L276 IsEmpty]: Start isEmpty. Operand 21764 states and 89382 transitions. [2021-07-13 18:21:05,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:21:05,134 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:05,135 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, 1, 1, 1, 1] [2021-07-13 18:21:05,135 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-07-13 18:21:05,135 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:05,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:05,135 INFO L82 PathProgramCache]: Analyzing trace with hash -481694563, now seen corresponding path program 7 times [2021-07-13 18:21:05,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:05,135 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688033304] [2021-07-13 18:21:05,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:05,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:05,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:05,760 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:05,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688033304] [2021-07-13 18:21:05,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688033304] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:05,760 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:05,760 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-13 18:21:05,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559808531] [2021-07-13 18:21:05,760 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-13 18:21:05,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:05,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-13 18:21:05,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2021-07-13 18:21:05,761 INFO L87 Difference]: Start difference. First operand 21764 states and 89382 transitions. Second operand has 26 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 26 states have internal predecessors, (74), 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) [2021-07-13 18:21:07,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:07,453 INFO L93 Difference]: Finished difference Result 26958 states and 108131 transitions. [2021-07-13 18:21:07,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 18:21:07,453 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 26 states have internal predecessors, (74), 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 74 [2021-07-13 18:21:07,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:07,528 INFO L225 Difference]: With dead ends: 26958 [2021-07-13 18:21:07,528 INFO L226 Difference]: Without dead ends: 23502 [2021-07-13 18:21:07,529 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 1162.8ms TimeCoverageRelationStatistics Valid=247, Invalid=2009, Unknown=0, NotChecked=0, Total=2256 [2021-07-13 18:21:07,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23502 states. [2021-07-13 18:21:08,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23502 to 19172. [2021-07-13 18:21:08,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19172 states, 19170 states have (on average 4.060719874804382) internal successors, (77844), 19171 states have internal predecessors, (77844), 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) [2021-07-13 18:21:08,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19172 states to 19172 states and 77844 transitions. [2021-07-13 18:21:08,214 INFO L78 Accepts]: Start accepts. Automaton has 19172 states and 77844 transitions. Word has length 74 [2021-07-13 18:21:08,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:08,214 INFO L482 AbstractCegarLoop]: Abstraction has 19172 states and 77844 transitions. [2021-07-13 18:21:08,214 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 26 states have internal predecessors, (74), 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) [2021-07-13 18:21:08,214 INFO L276 IsEmpty]: Start isEmpty. Operand 19172 states and 77844 transitions. [2021-07-13 18:21:08,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:21:08,250 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:08,250 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, 1, 1, 1, 1] [2021-07-13 18:21:08,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-07-13 18:21:08,250 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:08,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:08,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1223596091, now seen corresponding path program 8 times [2021-07-13 18:21:08,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:08,252 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687787941] [2021-07-13 18:21:08,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:08,887 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2021-07-13 18:21:09,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:09,114 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:09,114 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687787941] [2021-07-13 18:21:09,114 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687787941] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:09,114 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:09,114 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-13 18:21:09,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148842978] [2021-07-13 18:21:09,114 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 18:21:09,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:09,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 18:21:09,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-07-13 18:21:09,115 INFO L87 Difference]: Start difference. First operand 19172 states and 77844 transitions. Second operand has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 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) [2021-07-13 18:21:10,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:10,894 INFO L93 Difference]: Finished difference Result 22885 states and 90632 transitions. [2021-07-13 18:21:10,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-13 18:21:10,895 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 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 74 [2021-07-13 18:21:10,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:10,961 INFO L225 Difference]: With dead ends: 22885 [2021-07-13 18:21:10,961 INFO L226 Difference]: Without dead ends: 22021 [2021-07-13 18:21:10,962 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 1628.6ms TimeCoverageRelationStatistics Valid=253, Invalid=1817, Unknown=0, NotChecked=0, Total=2070 [2021-07-13 18:21:11,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22021 states. [2021-07-13 18:21:11,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22021 to 19193. [2021-07-13 18:21:11,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19193 states, 19191 states have (on average 4.058204366630191) internal successors, (77881), 19192 states have internal predecessors, (77881), 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) [2021-07-13 18:21:11,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19193 states to 19193 states and 77881 transitions. [2021-07-13 18:21:11,528 INFO L78 Accepts]: Start accepts. Automaton has 19193 states and 77881 transitions. Word has length 74 [2021-07-13 18:21:11,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:11,528 INFO L482 AbstractCegarLoop]: Abstraction has 19193 states and 77881 transitions. [2021-07-13 18:21:11,528 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 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) [2021-07-13 18:21:11,528 INFO L276 IsEmpty]: Start isEmpty. Operand 19193 states and 77881 transitions. [2021-07-13 18:21:11,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:21:11,554 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:11,554 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, 1, 1, 1, 1] [2021-07-13 18:21:11,554 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-07-13 18:21:11,554 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:11,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:11,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1885361097, now seen corresponding path program 9 times [2021-07-13 18:21:11,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:11,555 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546730698] [2021-07-13 18:21:11,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:11,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:11,825 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:11,825 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546730698] [2021-07-13 18:21:11,825 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546730698] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:11,825 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:11,825 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:21:11,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782209697] [2021-07-13 18:21:11,825 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:21:11,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:11,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:21:11,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:21:11,826 INFO L87 Difference]: Start difference. First operand 19193 states and 77881 transitions. Second operand has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 15 states have internal predecessors, (74), 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) [2021-07-13 18:21:12,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:12,731 INFO L93 Difference]: Finished difference Result 22856 states and 90587 transitions. [2021-07-13 18:21:12,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:21:12,731 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 15 states have internal predecessors, (74), 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 74 [2021-07-13 18:21:12,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:12,800 INFO L225 Difference]: With dead ends: 22856 [2021-07-13 18:21:12,800 INFO L226 Difference]: Without dead ends: 21992 [2021-07-13 18:21:12,801 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 437.7ms TimeCoverageRelationStatistics Valid=99, Invalid=657, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:21:12,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21992 states. [2021-07-13 18:21:13,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21992 to 19194. [2021-07-13 18:21:13,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19194 states, 19192 states have (on average 4.058045018757816) internal successors, (77882), 19193 states have internal predecessors, (77882), 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) [2021-07-13 18:21:13,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19194 states to 19194 states and 77882 transitions. [2021-07-13 18:21:13,437 INFO L78 Accepts]: Start accepts. Automaton has 19194 states and 77882 transitions. Word has length 74 [2021-07-13 18:21:13,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:13,437 INFO L482 AbstractCegarLoop]: Abstraction has 19194 states and 77882 transitions. [2021-07-13 18:21:13,437 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 15 states have internal predecessors, (74), 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) [2021-07-13 18:21:13,438 INFO L276 IsEmpty]: Start isEmpty. Operand 19194 states and 77882 transitions. [2021-07-13 18:21:13,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:21:13,464 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:13,465 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, 1, 1, 1, 1] [2021-07-13 18:21:13,465 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-07-13 18:21:13,465 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:13,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:13,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1675812887, now seen corresponding path program 10 times [2021-07-13 18:21:13,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:13,465 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328715883] [2021-07-13 18:21:13,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:13,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:13,757 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:13,757 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328715883] [2021-07-13 18:21:13,757 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328715883] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:13,757 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:13,757 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:21:13,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425634547] [2021-07-13 18:21:13,757 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:21:13,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:13,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:21:13,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:21:13,758 INFO L87 Difference]: Start difference. First operand 19194 states and 77882 transitions. Second operand has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 15 states have internal predecessors, (74), 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) [2021-07-13 18:21:14,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:14,665 INFO L93 Difference]: Finished difference Result 22886 states and 90633 transitions. [2021-07-13 18:21:14,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-13 18:21:14,666 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 15 states have internal predecessors, (74), 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 74 [2021-07-13 18:21:14,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:14,735 INFO L225 Difference]: With dead ends: 22886 [2021-07-13 18:21:14,735 INFO L226 Difference]: Without dead ends: 22022 [2021-07-13 18:21:14,736 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 456.9ms TimeCoverageRelationStatistics Valid=95, Invalid=607, Unknown=0, NotChecked=0, Total=702 [2021-07-13 18:21:14,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22022 states. [2021-07-13 18:21:15,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22022 to 19223. [2021-07-13 18:21:15,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19223 states, 19221 states have (on average 4.054263565891473) internal successors, (77927), 19222 states have internal predecessors, (77927), 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) [2021-07-13 18:21:15,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19223 states to 19223 states and 77927 transitions. [2021-07-13 18:21:15,362 INFO L78 Accepts]: Start accepts. Automaton has 19223 states and 77927 transitions. Word has length 74 [2021-07-13 18:21:15,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:15,362 INFO L482 AbstractCegarLoop]: Abstraction has 19223 states and 77927 transitions. [2021-07-13 18:21:15,362 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 15 states have internal predecessors, (74), 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) [2021-07-13 18:21:15,362 INFO L276 IsEmpty]: Start isEmpty. Operand 19223 states and 77927 transitions. [2021-07-13 18:21:15,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-13 18:21:15,396 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:15,396 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, 1, 1, 1, 1] [2021-07-13 18:21:15,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-07-13 18:21:15,396 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:15,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:15,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1475525857, now seen corresponding path program 11 times [2021-07-13 18:21:15,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:15,396 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529658942] [2021-07-13 18:21:15,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:15,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:15,634 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:15,634 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529658942] [2021-07-13 18:21:15,634 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529658942] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:15,634 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:15,634 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-13 18:21:15,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026413188] [2021-07-13 18:21:15,635 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-13 18:21:15,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:15,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-13 18:21:15,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-07-13 18:21:15,635 INFO L87 Difference]: Start difference. First operand 19223 states and 77927 transitions. Second operand has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 12 states have internal predecessors, (74), 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) [2021-07-13 18:21:16,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:16,043 INFO L93 Difference]: Finished difference Result 21916 states and 86727 transitions. [2021-07-13 18:21:16,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-13 18:21:16,044 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 12 states have internal predecessors, (74), 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 74 [2021-07-13 18:21:16,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:16,108 INFO L225 Difference]: With dead ends: 21916 [2021-07-13 18:21:16,108 INFO L226 Difference]: Without dead ends: 21052 [2021-07-13 18:21:16,108 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 261.6ms TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-07-13 18:21:16,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21052 states. [2021-07-13 18:21:16,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21052 to 18224. [2021-07-13 18:21:16,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18224 states, 18222 states have (on average 4.059708045220064) internal successors, (73976), 18223 states have internal predecessors, (73976), 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) [2021-07-13 18:21:16,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18224 states to 18224 states and 73976 transitions. [2021-07-13 18:21:16,673 INFO L78 Accepts]: Start accepts. Automaton has 18224 states and 73976 transitions. Word has length 74 [2021-07-13 18:21:16,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:16,673 INFO L482 AbstractCegarLoop]: Abstraction has 18224 states and 73976 transitions. [2021-07-13 18:21:16,673 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 12 states have internal predecessors, (74), 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) [2021-07-13 18:21:16,673 INFO L276 IsEmpty]: Start isEmpty. Operand 18224 states and 73976 transitions. [2021-07-13 18:21:16,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-07-13 18:21:16,701 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:16,701 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, 1, 1, 1, 1, 1, 1] [2021-07-13 18:21:16,701 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-07-13 18:21:16,701 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:16,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:16,701 INFO L82 PathProgramCache]: Analyzing trace with hash 648309940, now seen corresponding path program 1 times [2021-07-13 18:21:16,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:16,701 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369463439] [2021-07-13 18:21:16,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:17,154 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 27 [2021-07-13 18:21:17,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:17,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:17,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369463439] [2021-07-13 18:21:17,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369463439] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:17,693 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:17,693 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-13 18:21:17,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293559016] [2021-07-13 18:21:17,693 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-13 18:21:17,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:17,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-13 18:21:17,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2021-07-13 18:21:17,694 INFO L87 Difference]: Start difference. First operand 18224 states and 73976 transitions. Second operand has 26 states, 26 states have (on average 2.923076923076923) internal successors, (76), 26 states have internal predecessors, (76), 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) [2021-07-13 18:21:19,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:19,407 INFO L93 Difference]: Finished difference Result 24080 states and 95177 transitions. [2021-07-13 18:21:19,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 18:21:19,407 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.923076923076923) internal successors, (76), 26 states have internal predecessors, (76), 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 76 [2021-07-13 18:21:19,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:19,482 INFO L225 Difference]: With dead ends: 24080 [2021-07-13 18:21:19,482 INFO L226 Difference]: Without dead ends: 23396 [2021-07-13 18:21:19,483 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 1568.5ms TimeCoverageRelationStatistics Valid=258, Invalid=1998, Unknown=0, NotChecked=0, Total=2256 [2021-07-13 18:21:19,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23396 states. [2021-07-13 18:21:19,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23396 to 18224. [2021-07-13 18:21:19,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18224 states, 18222 states have (on average 4.059708045220064) internal successors, (73976), 18223 states have internal predecessors, (73976), 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) [2021-07-13 18:21:19,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18224 states to 18224 states and 73976 transitions. [2021-07-13 18:21:19,988 INFO L78 Accepts]: Start accepts. Automaton has 18224 states and 73976 transitions. Word has length 76 [2021-07-13 18:21:19,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:19,988 INFO L482 AbstractCegarLoop]: Abstraction has 18224 states and 73976 transitions. [2021-07-13 18:21:19,988 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.923076923076923) internal successors, (76), 26 states have internal predecessors, (76), 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) [2021-07-13 18:21:19,988 INFO L276 IsEmpty]: Start isEmpty. Operand 18224 states and 73976 transitions. [2021-07-13 18:21:20,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-07-13 18:21:20,017 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:20,017 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, 1, 1, 1, 1, 1, 1] [2021-07-13 18:21:20,018 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-07-13 18:21:20,018 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:20,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:20,018 INFO L82 PathProgramCache]: Analyzing trace with hash -207428046, now seen corresponding path program 2 times [2021-07-13 18:21:20,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:20,018 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736026680] [2021-07-13 18:21:20,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:20,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:20,627 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:20,627 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736026680] [2021-07-13 18:21:20,627 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736026680] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:20,627 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:20,627 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-07-13 18:21:20,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956215921] [2021-07-13 18:21:20,627 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-13 18:21:20,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:20,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-13 18:21:20,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-07-13 18:21:20,628 INFO L87 Difference]: Start difference. First operand 18224 states and 73976 transitions. Second operand has 24 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 24 states have internal predecessors, (76), 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) [2021-07-13 18:21:22,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:22,279 INFO L93 Difference]: Finished difference Result 22030 states and 86807 transitions. [2021-07-13 18:21:22,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-13 18:21:22,280 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 24 states have internal predecessors, (76), 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 76 [2021-07-13 18:21:22,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:22,345 INFO L225 Difference]: With dead ends: 22030 [2021-07-13 18:21:22,345 INFO L226 Difference]: Without dead ends: 21346 [2021-07-13 18:21:22,345 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 1154.7ms TimeCoverageRelationStatistics Valid=203, Invalid=1603, Unknown=0, NotChecked=0, Total=1806 [2021-07-13 18:21:22,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21346 states. [2021-07-13 18:21:22,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21346 to 16478. [2021-07-13 18:21:22,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16478 states, 16476 states have (on average 4.074471959213401) internal successors, (67131), 16477 states have internal predecessors, (67131), 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) [2021-07-13 18:21:22,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16478 states to 16478 states and 67131 transitions. [2021-07-13 18:21:22,734 INFO L78 Accepts]: Start accepts. Automaton has 16478 states and 67131 transitions. Word has length 76 [2021-07-13 18:21:22,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:22,735 INFO L482 AbstractCegarLoop]: Abstraction has 16478 states and 67131 transitions. [2021-07-13 18:21:22,735 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 24 states have internal predecessors, (76), 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) [2021-07-13 18:21:22,735 INFO L276 IsEmpty]: Start isEmpty. Operand 16478 states and 67131 transitions. [2021-07-13 18:21:22,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-07-13 18:21:22,763 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:22,763 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, 1, 1, 1, 1, 1, 1] [2021-07-13 18:21:22,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-07-13 18:21:22,763 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:22,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:22,764 INFO L82 PathProgramCache]: Analyzing trace with hash 712164980, now seen corresponding path program 3 times [2021-07-13 18:21:22,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:22,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679857431] [2021-07-13 18:21:22,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:23,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:23,492 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:23,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679857431] [2021-07-13 18:21:23,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679857431] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:23,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:23,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-07-13 18:21:23,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305320673] [2021-07-13 18:21:23,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-13 18:21:23,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:23,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-13 18:21:23,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2021-07-13 18:21:23,493 INFO L87 Difference]: Start difference. First operand 16478 states and 67131 transitions. Second operand has 22 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 22 states have internal predecessors, (76), 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) [2021-07-13 18:21:24,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:24,778 INFO L93 Difference]: Finished difference Result 21346 states and 84263 transitions. [2021-07-13 18:21:24,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-13 18:21:24,779 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 22 states have internal predecessors, (76), 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 76 [2021-07-13 18:21:24,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:24,843 INFO L225 Difference]: With dead ends: 21346 [2021-07-13 18:21:24,843 INFO L226 Difference]: Without dead ends: 21004 [2021-07-13 18:21:24,843 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 1027.5ms TimeCoverageRelationStatistics Valid=160, Invalid=1246, Unknown=0, NotChecked=0, Total=1406 [2021-07-13 18:21:24,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21004 states. [2021-07-13 18:21:25,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21004 to 16478. [2021-07-13 18:21:25,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16478 states, 16476 states have (on average 4.074471959213401) internal successors, (67131), 16477 states have internal predecessors, (67131), 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) [2021-07-13 18:21:25,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16478 states to 16478 states and 67131 transitions. [2021-07-13 18:21:25,223 INFO L78 Accepts]: Start accepts. Automaton has 16478 states and 67131 transitions. Word has length 76 [2021-07-13 18:21:25,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:25,223 INFO L482 AbstractCegarLoop]: Abstraction has 16478 states and 67131 transitions. [2021-07-13 18:21:25,223 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 22 states have internal predecessors, (76), 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) [2021-07-13 18:21:25,224 INFO L276 IsEmpty]: Start isEmpty. Operand 16478 states and 67131 transitions. [2021-07-13 18:21:25,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-07-13 18:21:25,334 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:25,334 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, 1, 1, 1, 1, 1, 1] [2021-07-13 18:21:25,334 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-07-13 18:21:25,334 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:25,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:25,335 INFO L82 PathProgramCache]: Analyzing trace with hash 896893274, now seen corresponding path program 4 times [2021-07-13 18:21:25,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:25,335 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517739278] [2021-07-13 18:21:25,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:25,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:25,782 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:25,782 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517739278] [2021-07-13 18:21:25,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517739278] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:25,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:25,782 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-13 18:21:25,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481200537] [2021-07-13 18:21:25,783 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-13 18:21:25,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:25,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-13 18:21:25,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-07-13 18:21:25,783 INFO L87 Difference]: Start difference. First operand 16478 states and 67131 transitions. Second operand has 20 states, 20 states have (on average 3.8) internal successors, (76), 20 states have internal predecessors, (76), 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) [2021-07-13 18:21:26,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:26,881 INFO L93 Difference]: Finished difference Result 16265 states and 64818 transitions. [2021-07-13 18:21:26,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-13 18:21:26,882 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.8) internal successors, (76), 20 states have internal predecessors, (76), 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 76 [2021-07-13 18:21:26,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:26,931 INFO L225 Difference]: With dead ends: 16265 [2021-07-13 18:21:26,931 INFO L226 Difference]: Without dead ends: 15923 [2021-07-13 18:21:26,931 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 724.5ms TimeCoverageRelationStatistics Valid=139, Invalid=1051, Unknown=0, NotChecked=0, Total=1190 [2021-07-13 18:21:26,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15923 states. [2021-07-13 18:21:27,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15923 to 11363. [2021-07-13 18:21:27,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11363 states, 11362 states have (on average 4.191867628938567) internal successors, (47628), 11362 states have internal predecessors, (47628), 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) [2021-07-13 18:21:27,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11363 states to 11363 states and 47628 transitions. [2021-07-13 18:21:27,194 INFO L78 Accepts]: Start accepts. Automaton has 11363 states and 47628 transitions. Word has length 76 [2021-07-13 18:21:27,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:27,194 INFO L482 AbstractCegarLoop]: Abstraction has 11363 states and 47628 transitions. [2021-07-13 18:21:27,194 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.8) internal successors, (76), 20 states have internal predecessors, (76), 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) [2021-07-13 18:21:27,194 INFO L276 IsEmpty]: Start isEmpty. Operand 11363 states and 47628 transitions. [2021-07-13 18:21:27,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-07-13 18:21:27,215 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:27,215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:21:27,216 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-07-13 18:21:27,216 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:27,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:27,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1972739611, now seen corresponding path program 1 times [2021-07-13 18:21:27,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:27,216 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160381203] [2021-07-13 18:21:27,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:27,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:27,487 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:27,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160381203] [2021-07-13 18:21:27,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160381203] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:27,487 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:27,487 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:21:27,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170322952] [2021-07-13 18:21:27,488 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:21:27,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:27,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:21:27,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:21:27,488 INFO L87 Difference]: Start difference. First operand 11363 states and 47628 transitions. Second operand has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 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) [2021-07-13 18:21:28,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:28,072 INFO L93 Difference]: Finished difference Result 11363 states and 47540 transitions. [2021-07-13 18:21:28,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:21:28,072 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 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 110 [2021-07-13 18:21:28,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:28,105 INFO L225 Difference]: With dead ends: 11363 [2021-07-13 18:21:28,105 INFO L226 Difference]: Without dead ends: 11363 [2021-07-13 18:21:28,106 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 452.1ms TimeCoverageRelationStatistics Valid=181, Invalid=631, Unknown=0, NotChecked=0, Total=812 [2021-07-13 18:21:28,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11363 states. [2021-07-13 18:21:28,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11363 to 11363. [2021-07-13 18:21:28,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11363 states, 11362 states have (on average 4.184122513641965) internal successors, (47540), 11362 states have internal predecessors, (47540), 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) [2021-07-13 18:21:28,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11363 states to 11363 states and 47540 transitions. [2021-07-13 18:21:28,339 INFO L78 Accepts]: Start accepts. Automaton has 11363 states and 47540 transitions. Word has length 110 [2021-07-13 18:21:28,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:28,339 INFO L482 AbstractCegarLoop]: Abstraction has 11363 states and 47540 transitions. [2021-07-13 18:21:28,339 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 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) [2021-07-13 18:21:28,340 INFO L276 IsEmpty]: Start isEmpty. Operand 11363 states and 47540 transitions. [2021-07-13 18:21:28,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-07-13 18:21:28,458 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:28,458 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:21:28,458 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-07-13 18:21:28,459 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:28,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:28,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1652489337, now seen corresponding path program 1 times [2021-07-13 18:21:28,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:28,459 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989726627] [2021-07-13 18:21:28,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:28,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:28,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:28,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989726627] [2021-07-13 18:21:28,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989726627] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:28,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:28,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:21:28,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42286778] [2021-07-13 18:21:28,662 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:21:28,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:28,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:21:28,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:21:28,663 INFO L87 Difference]: Start difference. First operand 11363 states and 47540 transitions. Second operand has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 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) [2021-07-13 18:21:29,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:29,126 INFO L93 Difference]: Finished difference Result 11363 states and 47532 transitions. [2021-07-13 18:21:29,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 18:21:29,126 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 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 110 [2021-07-13 18:21:29,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:29,158 INFO L225 Difference]: With dead ends: 11363 [2021-07-13 18:21:29,158 INFO L226 Difference]: Without dead ends: 10883 [2021-07-13 18:21:29,159 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 317.0ms TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2021-07-13 18:21:29,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10883 states. [2021-07-13 18:21:29,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10883 to 10883. [2021-07-13 18:21:29,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10883 states, 10882 states have (on average 4.184892482999449) internal successors, (45540), 10882 states have internal predecessors, (45540), 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) [2021-07-13 18:21:29,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10883 states to 10883 states and 45540 transitions. [2021-07-13 18:21:29,476 INFO L78 Accepts]: Start accepts. Automaton has 10883 states and 45540 transitions. Word has length 110 [2021-07-13 18:21:29,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:29,476 INFO L482 AbstractCegarLoop]: Abstraction has 10883 states and 45540 transitions. [2021-07-13 18:21:29,476 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 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) [2021-07-13 18:21:29,476 INFO L276 IsEmpty]: Start isEmpty. Operand 10883 states and 45540 transitions. [2021-07-13 18:21:29,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-07-13 18:21:29,497 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:29,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:21:29,497 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-07-13 18:21:29,497 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:29,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:29,498 INFO L82 PathProgramCache]: Analyzing trace with hash -2012056594, now seen corresponding path program 1 times [2021-07-13 18:21:29,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:29,498 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774909713] [2021-07-13 18:21:29,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:29,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:21:29,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:21:29,864 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:21:29,864 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774909713] [2021-07-13 18:21:29,864 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774909713] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:21:29,864 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:21:29,865 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:21:29,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926968214] [2021-07-13 18:21:29,865 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:21:29,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:21:29,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:21:29,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:21:29,865 INFO L87 Difference]: Start difference. First operand 10883 states and 45540 transitions. Second operand has 17 states, 17 states have (on average 6.470588235294118) internal successors, (110), 17 states have internal predecessors, (110), 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) [2021-07-13 18:21:30,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:21:30,463 INFO L93 Difference]: Finished difference Result 10883 states and 45164 transitions. [2021-07-13 18:21:30,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 18:21:30,463 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.470588235294118) internal successors, (110), 17 states have internal predecessors, (110), 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 110 [2021-07-13 18:21:30,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:21:30,489 INFO L225 Difference]: With dead ends: 10883 [2021-07-13 18:21:30,489 INFO L226 Difference]: Without dead ends: 8711 [2021-07-13 18:21:30,489 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 523.9ms TimeCoverageRelationStatistics Valid=200, Invalid=730, Unknown=0, NotChecked=0, Total=930 [2021-07-13 18:21:30,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8711 states. [2021-07-13 18:21:30,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8711 to 8711. [2021-07-13 18:21:30,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8711 states, 8710 states have (on average 4.128473019517796) internal successors, (35959), 8710 states have internal predecessors, (35959), 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) [2021-07-13 18:21:30,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8711 states to 8711 states and 35959 transitions. [2021-07-13 18:21:30,739 INFO L78 Accepts]: Start accepts. Automaton has 8711 states and 35959 transitions. Word has length 110 [2021-07-13 18:21:30,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:21:30,740 INFO L482 AbstractCegarLoop]: Abstraction has 8711 states and 35959 transitions. [2021-07-13 18:21:30,740 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.470588235294118) internal successors, (110), 17 states have internal predecessors, (110), 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) [2021-07-13 18:21:30,740 INFO L276 IsEmpty]: Start isEmpty. Operand 8711 states and 35959 transitions. [2021-07-13 18:21:30,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-07-13 18:21:30,756 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:21:30,757 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:21:30,757 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-07-13 18:21:30,757 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:21:30,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:21:30,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1393320306, now seen corresponding path program 1 times [2021-07-13 18:21:30,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:21:30,757 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342149427] [2021-07-13 18:21:30,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:21:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-13 18:21:30,780 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-13 18:21:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-13 18:21:30,802 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-13 18:21:30,846 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-13 18:21:30,847 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-13 18:21:30,847 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-07-13 18:21:30,847 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/2) [2021-07-13 18:21:30,850 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-13 18:21:30,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 06:21:30 BasicIcfg [2021-07-13 18:21:30,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-13 18:21:30,988 INFO L168 Benchmark]: Toolchain (without parser) took 239647.00 ms. Allocated memory was 180.4 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 142.4 MB in the beginning and 6.1 GB in the end (delta: -5.9 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. [2021-07-13 18:21:30,988 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 180.4 MB. Free memory was 161.5 MB in the beginning and 161.4 MB in the end (delta: 139.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 18:21:30,988 INFO L168 Benchmark]: CACSL2BoogieTranslator took 626.17 ms. Allocated memory is still 180.4 MB. Free memory was 142.3 MB in the beginning and 141.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-13 18:21:30,989 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.43 ms. Allocated memory is still 180.4 MB. Free memory was 141.3 MB in the beginning and 138.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:21:30,989 INFO L168 Benchmark]: Boogie Preprocessor took 40.66 ms. Allocated memory is still 180.4 MB. Free memory was 138.6 MB in the beginning and 137.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-13 18:21:30,989 INFO L168 Benchmark]: RCFGBuilder took 420.16 ms. Allocated memory is still 180.4 MB. Free memory was 137.1 MB in the beginning and 107.2 MB in the end (delta: 29.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2021-07-13 18:21:30,989 INFO L168 Benchmark]: TraceAbstraction took 238518.75 ms. Allocated memory was 180.4 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 107.2 MB in the beginning and 6.1 GB in the end (delta: -6.0 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. [2021-07-13 18:21:30,989 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 180.4 MB. Free memory was 161.5 MB in the beginning and 161.4 MB in the end (delta: 139.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 626.17 ms. Allocated memory is still 180.4 MB. Free memory was 142.3 MB in the beginning and 141.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 36.43 ms. Allocated memory is still 180.4 MB. Free memory was 141.3 MB in the beginning and 138.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 40.66 ms. Allocated memory is still 180.4 MB. Free memory was 138.6 MB in the beginning and 137.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 420.16 ms. Allocated memory is still 180.4 MB. Free memory was 137.1 MB in the beginning and 107.2 MB in the end (delta: 29.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 238518.75 ms. Allocated memory was 180.4 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 107.2 MB in the beginning and 6.1 GB in the end (delta: -6.0 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1123]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1124] 0 char *v; VAL [v={0:0}] [L1161] 0 pthread_t t; VAL [v={0:0}] [L1162] FCALL, FORK 0 pthread_create(&t, 0, thread0, 0) VAL [arg={0:0}, v={0:0}] [L1146] 1 pthread_t t1, t2, t3, t4, t5; VAL [arg={0:0}, arg={0:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={0:0}] [L1147] FCALL, FORK 1 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t1, 0, thread1, 0)=-2147483647, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={0:0}] [L1148] 1 \read(t1) VAL [\read(t1)=-2147483647, arg={0:0}, arg={0:0}, arg={0:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={0:0}] [L1127] 2 v = malloc(sizeof(char)) VAL [\read(t1)=-2147483647, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1128] 2 return 0; VAL [\read(t1)=-2147483647, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1148] FCALL, JOIN 2 pthread_join(t1, 0) VAL [\read(t1)=-2147483647, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1149] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, pthread_create(&t2, 0, thread2, 0)=-2147483646, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1150] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, pthread_create(&t3, 0, thread3, 0)=-2147483645, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1163] 0 \read(t) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, pthread_create(&t3, 0, thread3, 0)=-2147483645, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1151] FCALL, FORK 1 pthread_create(&t4, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, pthread_create(&t4, 0, thread2, 0)=-2147483644, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1133] 5 v[0] = 'X' VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, pthread_create(&t4, 0, thread2, 0)=-2147483644, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1135] 5 return 0; VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, pthread_create(&t4, 0, thread2, 0)=-2147483644, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1152] FCALL, FORK 1 pthread_create(&t5, 0, thread2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, pthread_create(&t5, 0, thread2, 0)=-2147483643, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1133] 6 v[0] = 'X' VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, pthread_create(&t5, 0, thread2, 0)=-2147483643, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1135] 6 return 0; VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1153] 1 \read(t2) VAL [\read(t2)=-2147483646, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1133] 3 v[0] = 'X' VAL [\read(t2)=-2147483646, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1135] 3 return 0; VAL [\read(t2)=-2147483646, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1153] FCALL, JOIN 3 pthread_join(t2, 0) VAL [\read(t2)=-2147483646, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1140] 4 v[0] = 'Y' VAL [\read(t2)=-2147483646, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1142] 4 return 0; VAL [\read(t2)=-2147483646, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1154] 1 \read(t3) VAL [\read(t3)=-2147483645, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1154] FCALL, JOIN 4 pthread_join(t3, 0) VAL [\read(t3)=-2147483645, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1155] 1 \read(t4) VAL [\read(t4)=-2147483644, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1155] FCALL, JOIN 5 pthread_join(t4, 0) VAL [\read(t4)=-2147483644, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1156] 1 \read(t5) VAL [\read(t5)=-2147483643, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1156] FCALL, JOIN 6 pthread_join(t5, 0) VAL [\read(t5)=-2147483643, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1157] 1 return 0; VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1157] 1 return 0; VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1157] 1 return 0; VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1157] 1 return 0; VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1157] 1 return 0; VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t5={5:0}, v={3:0}] [L1157] 1 return 0; VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, v={3:0}] [L1163] FCALL, JOIN 1 pthread_join(t, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, v={3:0}] [L1164] 0 v[0] VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, v={3:0}] [L1123] COND TRUE 0 !expression VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, v={3:0}] [L1123] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, v={3:0}] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 11 procedures, 216 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 237983.1ms, OverallIterations: 61, TraceHistogramMax: 1, EmptinessCheckTime: 3781.2ms, AutomataDifference: 107186.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3118.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 13740 SDtfs, 23527 SDslu, 125629 SDs, 0 SdLazy, 58798 SolverSat, 3185 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29772.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2102 GetRequests, 133 SyntacticMatches, 169 SemanticMatches, 1800 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11463 ImplicationChecksByTransitivity, 46014.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=70523occurred in iteration=0, InterpolantAutomatonStates: 1333, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 94993.2ms AutomataMinimizationTime, 60 MinimizatonAttempts, 379463 StatesRemovedByMinimization, 57 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 170.0ms SsaConstructionTime, 831.0ms SatisfiabilityAnalysisTime, 27224.7ms InterpolantComputationTime, 4255 NumberOfCodeBlocks, 4255 NumberOfCodeBlocksAsserted, 61 NumberOfCheckSat, 4085 ConstructedInterpolants, 0 QuantifiedInterpolants, 90109 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 60 InterpolantComputations, 60 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...