/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-wmm/safe016_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-12 17:17:45,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-12 17:17:45,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-12 17:17:45,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-12 17:17:45,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-12 17:17:45,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-12 17:17:45,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-12 17:17:45,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-12 17:17:45,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-12 17:17:45,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-12 17:17:45,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-12 17:17:45,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-12 17:17:45,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-12 17:17:45,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-12 17:17:45,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-12 17:17:45,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-12 17:17:45,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-12 17:17:45,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-12 17:17:45,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-12 17:17:45,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-12 17:17:45,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-12 17:17:45,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-12 17:17:45,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-12 17:17:45,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-12 17:17:45,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-12 17:17:45,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-12 17:17:45,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-12 17:17:45,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-12 17:17:45,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-12 17:17:45,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-12 17:17:45,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-12 17:17:45,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-12 17:17:45,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-12 17:17:45,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-12 17:17:45,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-12 17:17:45,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-12 17:17:45,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-12 17:17:45,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-12 17:17:45,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-12 17:17:45,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-12 17:17:45,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-12 17:17:45,172 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 [2021-06-12 17:17:45,187 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-12 17:17:45,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-12 17:17:45,187 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-12 17:17:45,188 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-12 17:17:45,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-12 17:17:45,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-12 17:17:45,189 INFO L138 SettingsManager]: * Use SBE=true [2021-06-12 17:17:45,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-12 17:17:45,189 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-12 17:17:45,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-12 17:17:45,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-12 17:17:45,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-12 17:17:45,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-12 17:17:45,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-12 17:17:45,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-12 17:17:45,190 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-12 17:17:45,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-12 17:17:45,190 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-12 17:17:45,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-12 17:17:45,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-12 17:17:45,191 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-12 17:17:45,191 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-12 17:17:45,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-12 17:17:45,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 17:17:45,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-12 17:17:45,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-12 17:17:45,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-12 17:17:45,192 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-12 17:17:45,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-12 17:17:45,192 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-12 17:17:45,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-12 17:17:45,207 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-12 17:17:45,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-12 17:17:45,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-12 17:17:45,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-12 17:17:45,462 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-12 17:17:45,463 INFO L275 PluginConnector]: CDTParser initialized [2021-06-12 17:17:45,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2021-06-12 17:17:45,513 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44789568a/9457b2b6836947c4815d1f52fe7360c1/FLAG905747ae4 [2021-06-12 17:17:45,914 INFO L306 CDTParser]: Found 1 translation units. [2021-06-12 17:17:45,914 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2021-06-12 17:17:45,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44789568a/9457b2b6836947c4815d1f52fe7360c1/FLAG905747ae4 [2021-06-12 17:17:45,944 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44789568a/9457b2b6836947c4815d1f52fe7360c1 [2021-06-12 17:17:45,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-12 17:17:45,947 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-12 17:17:45,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-12 17:17:45,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-12 17:17:45,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-12 17:17:45,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:17:45" (1/1) ... [2021-06-12 17:17:45,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f5c4c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:45, skipping insertion in model container [2021-06-12 17:17:45,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:17:45" (1/1) ... [2021-06-12 17:17:45,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-12 17:17:46,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-12 17:17:46,095 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i[949,962] [2021-06-12 17:17:46,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:17:46,251 INFO L203 MainTranslator]: Completed pre-run [2021-06-12 17:17:46,259 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i[949,962] [2021-06-12 17:17:46,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:17:46,346 INFO L208 MainTranslator]: Completed translation [2021-06-12 17:17:46,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:46 WrapperNode [2021-06-12 17:17:46,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-12 17:17:46,347 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-12 17:17:46,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-12 17:17:46,348 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-12 17:17:46,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:46" (1/1) ... [2021-06-12 17:17:46,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:46" (1/1) ... [2021-06-12 17:17:46,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-12 17:17:46,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-12 17:17:46,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-12 17:17:46,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-12 17:17:46,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:46" (1/1) ... [2021-06-12 17:17:46,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:46" (1/1) ... [2021-06-12 17:17:46,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:46" (1/1) ... [2021-06-12 17:17:46,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:46" (1/1) ... [2021-06-12 17:17:46,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:46" (1/1) ... [2021-06-12 17:17:46,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:46" (1/1) ... [2021-06-12 17:17:46,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:46" (1/1) ... [2021-06-12 17:17:46,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-12 17:17:46,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-12 17:17:46,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-12 17:17:46,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-12 17:17:46,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 17:17:46,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-12 17:17:46,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-12 17:17:46,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-12 17:17:46,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-12 17:17:46,457 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-12 17:17:46,458 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-12 17:17:46,459 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-12 17:17:46,459 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-12 17:17:46,459 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-12 17:17:46,459 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-12 17:17:46,459 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-12 17:17:46,459 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-12 17:17:46,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-12 17:17:46,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-12 17:17:46,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-12 17:17:46,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-12 17:17:46,460 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-12 17:17:46,815 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-12 17:17:46,815 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-12 17:17:46,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:17:46 BoogieIcfgContainer [2021-06-12 17:17:46,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-12 17:17:46,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-12 17:17:46,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-12 17:17:46,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-12 17:17:46,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.06 05:17:45" (1/3) ... [2021-06-12 17:17:46,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fda9097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:17:46, skipping insertion in model container [2021-06-12 17:17:46,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:17:46" (2/3) ... [2021-06-12 17:17:46,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fda9097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:17:46, skipping insertion in model container [2021-06-12 17:17:46,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:17:46" (3/3) ... [2021-06-12 17:17:46,823 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.opt.i [2021-06-12 17:17:46,827 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-12 17:17:46,827 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-12 17:17:46,827 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-12 17:17:46,828 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-12 17:17:46,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,859 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,859 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,859 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,860 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,860 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,861 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,861 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,861 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,861 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,861 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,861 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,861 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,862 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,862 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,862 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,863 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,863 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,863 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,863 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,863 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,863 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,864 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,864 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,864 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,864 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,864 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,865 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,865 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,865 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,865 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,865 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,865 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,865 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,865 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,866 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,866 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,866 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,866 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,866 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,867 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,869 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,878 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,878 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,878 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,882 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,882 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,882 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,883 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,884 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,884 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,884 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,885 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,886 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,886 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,886 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,886 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:17:46,887 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-12 17:17:46,900 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-12 17:17:46,913 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 17:17:46,913 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 17:17:46,913 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 17:17:46,913 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 17:17:46,913 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 17:17:46,913 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 17:17:46,913 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 17:17:46,914 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 17:17:46,920 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 108 places, 97 transitions, 214 flow [2021-06-12 17:17:52,032 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 51814 states, 51812 states have (on average 4.368717671581873) internal successors, (226352), 51813 states have internal predecessors, (226352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:52,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 51814 states, 51812 states have (on average 4.368717671581873) internal successors, (226352), 51813 states have internal predecessors, (226352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:52,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-12 17:17:52,326 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:17:52,326 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:17:52,327 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:17:52,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:17:52,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1675625032, now seen corresponding path program 1 times [2021-06-12 17:17:52,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:17:52,339 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79809173] [2021-06-12 17:17:52,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:17:52,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:17:52,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:17:52,802 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:17:52,802 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79809173] [2021-06-12 17:17:52,802 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79809173] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:17:52,803 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:17:52,803 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:17:52,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950220779] [2021-06-12 17:17:52,806 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:17:52,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:17:52,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:17:52,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:17:52,931 INFO L87 Difference]: Start difference. First operand has 51814 states, 51812 states have (on average 4.368717671581873) internal successors, (226352), 51813 states have internal predecessors, (226352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:54,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:17:54,617 INFO L93 Difference]: Finished difference Result 115618 states and 491448 transitions. [2021-06-12 17:17:54,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-12 17:17:54,618 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-06-12 17:17:54,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:17:54,931 INFO L225 Difference]: With dead ends: 115618 [2021-06-12 17:17:54,932 INFO L226 Difference]: Without dead ends: 36814 [2021-06-12 17:17:54,932 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 208.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:17:55,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36814 states. [2021-06-12 17:17:56,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36814 to 30478. [2021-06-12 17:17:56,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30478 states, 30477 states have (on average 4.128884076516718) internal successors, (125836), 30477 states have internal predecessors, (125836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:56,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30478 states to 30478 states and 125836 transitions. [2021-06-12 17:17:56,575 INFO L78 Accepts]: Start accepts. Automaton has 30478 states and 125836 transitions. Word has length 55 [2021-06-12 17:17:56,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:17:56,576 INFO L482 AbstractCegarLoop]: Abstraction has 30478 states and 125836 transitions. [2021-06-12 17:17:56,576 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:56,576 INFO L276 IsEmpty]: Start isEmpty. Operand 30478 states and 125836 transitions. [2021-06-12 17:17:56,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-12 17:17:56,825 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:17:56,825 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:17:56,825 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-12 17:17:56,825 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:17:56,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:17:56,828 INFO L82 PathProgramCache]: Analyzing trace with hash -728552423, now seen corresponding path program 1 times [2021-06-12 17:17:56,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:17:56,829 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632636866] [2021-06-12 17:17:56,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:17:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:17:56,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:17:56,961 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:17:56,961 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632636866] [2021-06-12 17:17:56,962 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632636866] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:17:56,962 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:17:56,962 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:17:56,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696222724] [2021-06-12 17:17:56,963 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:17:56,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:17:56,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:17:56,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:17:56,966 INFO L87 Difference]: Start difference. First operand 30478 states and 125836 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:57,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:17:57,525 INFO L93 Difference]: Finished difference Result 45766 states and 187560 transitions. [2021-06-12 17:17:57,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-12 17:17:57,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-06-12 17:17:57,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:17:57,653 INFO L225 Difference]: With dead ends: 45766 [2021-06-12 17:17:57,653 INFO L226 Difference]: Without dead ends: 36694 [2021-06-12 17:17:57,654 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 146.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:17:57,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36694 states. [2021-06-12 17:17:58,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36694 to 29230. [2021-06-12 17:17:58,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29230 states, 29229 states have (on average 4.115022751377057) internal successors, (120278), 29229 states have internal predecessors, (120278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:58,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29230 states to 29230 states and 120278 transitions. [2021-06-12 17:17:58,817 INFO L78 Accepts]: Start accepts. Automaton has 29230 states and 120278 transitions. Word has length 57 [2021-06-12 17:17:58,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:17:58,818 INFO L482 AbstractCegarLoop]: Abstraction has 29230 states and 120278 transitions. [2021-06-12 17:17:58,818 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:58,818 INFO L276 IsEmpty]: Start isEmpty. Operand 29230 states and 120278 transitions. [2021-06-12 17:17:58,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-12 17:17:58,886 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:17:58,887 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:17:58,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-12 17:17:58,887 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:17:58,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:17:58,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1714446202, now seen corresponding path program 1 times [2021-06-12 17:17:58,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:17:58,894 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978354271] [2021-06-12 17:17:58,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:17:59,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:17:59,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:17:59,218 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:17:59,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978354271] [2021-06-12 17:17:59,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978354271] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:17:59,219 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:17:59,219 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 17:17:59,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31711286] [2021-06-12 17:17:59,219 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 17:17:59,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:17:59,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 17:17:59,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-12 17:17:59,220 INFO L87 Difference]: Start difference. First operand 29230 states and 120278 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:17:59,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:17:59,774 INFO L93 Difference]: Finished difference Result 50986 states and 207167 transitions. [2021-06-12 17:17:59,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-12 17:17:59,775 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-06-12 17:17:59,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:17:59,875 INFO L225 Difference]: With dead ends: 50986 [2021-06-12 17:17:59,875 INFO L226 Difference]: Without dead ends: 29028 [2021-06-12 17:17:59,876 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 130.9ms TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:17:59,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29028 states. [2021-06-12 17:18:00,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29028 to 24052. [2021-06-12 17:18:00,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24052 states, 24051 states have (on average 4.042576192258118) internal successors, (97228), 24051 states have internal predecessors, (97228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:00,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24052 states to 24052 states and 97228 transitions. [2021-06-12 17:18:00,749 INFO L78 Accepts]: Start accepts. Automaton has 24052 states and 97228 transitions. Word has length 59 [2021-06-12 17:18:00,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:18:00,749 INFO L482 AbstractCegarLoop]: Abstraction has 24052 states and 97228 transitions. [2021-06-12 17:18:00,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:00,749 INFO L276 IsEmpty]: Start isEmpty. Operand 24052 states and 97228 transitions. [2021-06-12 17:18:00,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 17:18:00,804 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:18:00,804 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:18:00,804 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-12 17:18:00,805 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:18:00,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:18:00,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1714578911, now seen corresponding path program 1 times [2021-06-12 17:18:00,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:18:00,805 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436481506] [2021-06-12 17:18:00,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:18:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:18:00,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:18:00,920 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:18:00,920 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436481506] [2021-06-12 17:18:00,920 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436481506] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:18:00,920 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:18:00,920 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:18:00,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70200998] [2021-06-12 17:18:00,924 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:18:00,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:18:00,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:18:00,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:18:00,925 INFO L87 Difference]: Start difference. First operand 24052 states and 97228 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:01,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:18:01,111 INFO L93 Difference]: Finished difference Result 25332 states and 102012 transitions. [2021-06-12 17:18:01,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:18:01,112 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-12 17:18:01,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:18:01,172 INFO L225 Difference]: With dead ends: 25332 [2021-06-12 17:18:01,173 INFO L226 Difference]: Without dead ends: 23092 [2021-06-12 17:18:01,173 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 71.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:18:01,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23092 states. [2021-06-12 17:18:01,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23092 to 22068. [2021-06-12 17:18:01,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22068 states, 22067 states have (on average 4.027552453890425) internal successors, (88876), 22067 states have internal predecessors, (88876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:01,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22068 states to 22068 states and 88876 transitions. [2021-06-12 17:18:01,918 INFO L78 Accepts]: Start accepts. Automaton has 22068 states and 88876 transitions. Word has length 61 [2021-06-12 17:18:01,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:18:01,918 INFO L482 AbstractCegarLoop]: Abstraction has 22068 states and 88876 transitions. [2021-06-12 17:18:01,918 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:01,918 INFO L276 IsEmpty]: Start isEmpty. Operand 22068 states and 88876 transitions. [2021-06-12 17:18:01,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-12 17:18:01,952 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:18:01,952 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:18:01,952 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-12 17:18:01,952 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:18:01,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:18:01,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1749629959, now seen corresponding path program 1 times [2021-06-12 17:18:01,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:18:01,953 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933992924] [2021-06-12 17:18:01,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:18:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:18:02,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:18:02,035 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:18:02,035 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933992924] [2021-06-12 17:18:02,036 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933992924] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:18:02,036 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:18:02,036 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 17:18:02,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082046512] [2021-06-12 17:18:02,036 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 17:18:02,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:18:02,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 17:18:02,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-12 17:18:02,037 INFO L87 Difference]: Start difference. First operand 22068 states and 88876 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:02,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:18:02,518 INFO L93 Difference]: Finished difference Result 46036 states and 181948 transitions. [2021-06-12 17:18:02,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-12 17:18:02,519 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-06-12 17:18:02,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:18:02,581 INFO L225 Difference]: With dead ends: 46036 [2021-06-12 17:18:02,581 INFO L226 Difference]: Without dead ends: 21276 [2021-06-12 17:18:02,581 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 134.0ms TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2021-06-12 17:18:02,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21276 states. [2021-06-12 17:18:02,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21276 to 16412. [2021-06-12 17:18:02,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16412 states, 16411 states have (on average 3.888245688867223) internal successors, (63810), 16411 states have internal predecessors, (63810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:03,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16412 states to 16412 states and 63810 transitions. [2021-06-12 17:18:03,143 INFO L78 Accepts]: Start accepts. Automaton has 16412 states and 63810 transitions. Word has length 62 [2021-06-12 17:18:03,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:18:03,143 INFO L482 AbstractCegarLoop]: Abstraction has 16412 states and 63810 transitions. [2021-06-12 17:18:03,144 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:03,144 INFO L276 IsEmpty]: Start isEmpty. Operand 16412 states and 63810 transitions. [2021-06-12 17:18:03,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-12 17:18:03,167 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:18:03,167 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:18:03,167 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-12 17:18:03,167 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:18:03,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:18:03,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1358272108, now seen corresponding path program 1 times [2021-06-12 17:18:03,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:18:03,168 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950625812] [2021-06-12 17:18:03,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:18:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:18:03,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:18:03,233 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:18:03,233 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950625812] [2021-06-12 17:18:03,233 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950625812] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:18:03,233 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:18:03,233 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:18:03,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289117796] [2021-06-12 17:18:03,233 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:18:03,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:18:03,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:18:03,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:18:03,234 INFO L87 Difference]: Start difference. First operand 16412 states and 63810 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:03,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:18:03,484 INFO L93 Difference]: Finished difference Result 25564 states and 98786 transitions. [2021-06-12 17:18:03,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-12 17:18:03,484 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-06-12 17:18:03,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:18:03,531 INFO L225 Difference]: With dead ends: 25564 [2021-06-12 17:18:03,531 INFO L226 Difference]: Without dead ends: 19804 [2021-06-12 17:18:03,532 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 113.4ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:18:03,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19804 states. [2021-06-12 17:18:03,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19804 to 15084. [2021-06-12 17:18:03,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15084 states, 15083 states have (on average 3.872571769541868) internal successors, (58410), 15083 states have internal predecessors, (58410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:03,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15084 states to 15084 states and 58410 transitions. [2021-06-12 17:18:03,972 INFO L78 Accepts]: Start accepts. Automaton has 15084 states and 58410 transitions. Word has length 62 [2021-06-12 17:18:03,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:18:03,972 INFO L482 AbstractCegarLoop]: Abstraction has 15084 states and 58410 transitions. [2021-06-12 17:18:03,972 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:03,972 INFO L276 IsEmpty]: Start isEmpty. Operand 15084 states and 58410 transitions. [2021-06-12 17:18:03,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-12 17:18:03,995 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:18:03,995 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:18:03,995 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-12 17:18:03,995 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:18:03,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:18:03,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1753261216, now seen corresponding path program 1 times [2021-06-12 17:18:03,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:18:03,995 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980664783] [2021-06-12 17:18:03,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:18:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:18:04,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:18:04,064 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:18:04,064 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980664783] [2021-06-12 17:18:04,064 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980664783] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:18:04,064 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:18:04,064 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:18:04,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114224830] [2021-06-12 17:18:04,065 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:18:04,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:18:04,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:18:04,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:18:04,066 INFO L87 Difference]: Start difference. First operand 15084 states and 58410 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:04,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:18:04,241 INFO L93 Difference]: Finished difference Result 20124 states and 76962 transitions. [2021-06-12 17:18:04,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-12 17:18:04,241 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-06-12 17:18:04,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:18:04,405 INFO L225 Difference]: With dead ends: 20124 [2021-06-12 17:18:04,406 INFO L226 Difference]: Without dead ends: 9479 [2021-06-12 17:18:04,406 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 57.9ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:18:04,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9479 states. [2021-06-12 17:18:04,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9479 to 9479. [2021-06-12 17:18:04,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9479 states, 9478 states have (on average 3.8269677147077443) internal successors, (36272), 9478 states have internal predecessors, (36272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:04,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9479 states to 9479 states and 36272 transitions. [2021-06-12 17:18:04,589 INFO L78 Accepts]: Start accepts. Automaton has 9479 states and 36272 transitions. Word has length 63 [2021-06-12 17:18:04,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:18:04,589 INFO L482 AbstractCegarLoop]: Abstraction has 9479 states and 36272 transitions. [2021-06-12 17:18:04,589 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:04,590 INFO L276 IsEmpty]: Start isEmpty. Operand 9479 states and 36272 transitions. [2021-06-12 17:18:04,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-12 17:18:04,602 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:18:04,602 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:18:04,602 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-12 17:18:04,603 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:18:04,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:18:04,603 INFO L82 PathProgramCache]: Analyzing trace with hash 261023848, now seen corresponding path program 2 times [2021-06-12 17:18:04,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:18:04,603 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710908136] [2021-06-12 17:18:04,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:18:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:18:04,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:18:04,658 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:18:04,659 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710908136] [2021-06-12 17:18:04,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710908136] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:18:04,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:18:04,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:18:04,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916279754] [2021-06-12 17:18:04,659 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:18:04,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:18:04,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:18:04,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:18:04,660 INFO L87 Difference]: Start difference. First operand 9479 states and 36272 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:04,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:18:04,790 INFO L93 Difference]: Finished difference Result 12330 states and 46729 transitions. [2021-06-12 17:18:04,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:18:04,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-06-12 17:18:04,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:18:04,811 INFO L225 Difference]: With dead ends: 12330 [2021-06-12 17:18:04,811 INFO L226 Difference]: Without dead ends: 9130 [2021-06-12 17:18:04,812 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 63.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:18:04,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9130 states. [2021-06-12 17:18:05,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9130 to 9130. [2021-06-12 17:18:05,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9130 states, 9129 states have (on average 3.8041406506736775) internal successors, (34728), 9129 states have internal predecessors, (34728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:05,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9130 states to 9130 states and 34728 transitions. [2021-06-12 17:18:05,133 INFO L78 Accepts]: Start accepts. Automaton has 9130 states and 34728 transitions. Word has length 63 [2021-06-12 17:18:05,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:18:05,133 INFO L482 AbstractCegarLoop]: Abstraction has 9130 states and 34728 transitions. [2021-06-12 17:18:05,133 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:05,133 INFO L276 IsEmpty]: Start isEmpty. Operand 9130 states and 34728 transitions. [2021-06-12 17:18:05,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-06-12 17:18:05,146 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:18:05,147 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:18:05,147 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-12 17:18:05,147 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:18:05,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:18:05,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1335715918, now seen corresponding path program 1 times [2021-06-12 17:18:05,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:18:05,147 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743582559] [2021-06-12 17:18:05,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:18:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:18:05,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:18:05,224 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:18:05,224 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743582559] [2021-06-12 17:18:05,224 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743582559] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:18:05,225 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:18:05,225 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:18:05,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887335780] [2021-06-12 17:18:05,225 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:18:05,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:18:05,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:18:05,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:18:05,226 INFO L87 Difference]: Start difference. First operand 9130 states and 34728 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:05,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:18:05,391 INFO L93 Difference]: Finished difference Result 10600 states and 39578 transitions. [2021-06-12 17:18:05,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:18:05,392 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-06-12 17:18:05,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:18:05,411 INFO L225 Difference]: With dead ends: 10600 [2021-06-12 17:18:05,411 INFO L226 Difference]: Without dead ends: 7660 [2021-06-12 17:18:05,411 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 96.8ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-12 17:18:05,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7660 states. [2021-06-12 17:18:05,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7660 to 7660. [2021-06-12 17:18:05,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7660 states, 7659 states have (on average 3.7181094137615878) internal successors, (28477), 7659 states have internal predecessors, (28477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:05,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7660 states to 7660 states and 28477 transitions. [2021-06-12 17:18:05,572 INFO L78 Accepts]: Start accepts. Automaton has 7660 states and 28477 transitions. Word has length 64 [2021-06-12 17:18:05,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:18:05,572 INFO L482 AbstractCegarLoop]: Abstraction has 7660 states and 28477 transitions. [2021-06-12 17:18:05,572 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:05,573 INFO L276 IsEmpty]: Start isEmpty. Operand 7660 states and 28477 transitions. [2021-06-12 17:18:05,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-12 17:18:05,582 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:18:05,583 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:18:05,583 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-12 17:18:05,583 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:18:05,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:18:05,583 INFO L82 PathProgramCache]: Analyzing trace with hash 530155275, now seen corresponding path program 1 times [2021-06-12 17:18:05,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:18:05,583 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471203033] [2021-06-12 17:18:05,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:18:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:18:05,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:18:05,765 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:18:05,765 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471203033] [2021-06-12 17:18:05,765 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471203033] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:18:05,765 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:18:05,765 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 17:18:05,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008254921] [2021-06-12 17:18:05,766 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 17:18:05,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:18:05,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 17:18:05,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-12 17:18:05,766 INFO L87 Difference]: Start difference. First operand 7660 states and 28477 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:05,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:18:05,902 INFO L93 Difference]: Finished difference Result 7003 states and 25387 transitions. [2021-06-12 17:18:05,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-12 17:18:05,902 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-06-12 17:18:05,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:18:05,912 INFO L225 Difference]: With dead ends: 7003 [2021-06-12 17:18:05,912 INFO L226 Difference]: Without dead ends: 4591 [2021-06-12 17:18:05,912 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 199.8ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:18:05,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4591 states. [2021-06-12 17:18:05,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4591 to 4591. [2021-06-12 17:18:05,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4591 states, 4590 states have (on average 3.555773420479303) internal successors, (16321), 4590 states have internal predecessors, (16321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:05,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4591 states to 4591 states and 16321 transitions. [2021-06-12 17:18:05,980 INFO L78 Accepts]: Start accepts. Automaton has 4591 states and 16321 transitions. Word has length 65 [2021-06-12 17:18:05,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:18:05,980 INFO L482 AbstractCegarLoop]: Abstraction has 4591 states and 16321 transitions. [2021-06-12 17:18:05,980 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:05,980 INFO L276 IsEmpty]: Start isEmpty. Operand 4591 states and 16321 transitions. [2021-06-12 17:18:05,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-06-12 17:18:05,986 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:18:05,986 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:18:05,986 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-12 17:18:05,987 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:18:05,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:18:05,987 INFO L82 PathProgramCache]: Analyzing trace with hash -59477818, now seen corresponding path program 1 times [2021-06-12 17:18:05,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:18:05,987 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448549901] [2021-06-12 17:18:05,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:18:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:18:06,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:18:06,049 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:18:06,049 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448549901] [2021-06-12 17:18:06,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448549901] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:18:06,049 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:18:06,049 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 17:18:06,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887767768] [2021-06-12 17:18:06,049 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 17:18:06,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:18:06,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 17:18:06,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-12 17:18:06,050 INFO L87 Difference]: Start difference. First operand 4591 states and 16321 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:06,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:18:06,130 INFO L93 Difference]: Finished difference Result 5944 states and 20931 transitions. [2021-06-12 17:18:06,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:18:06,130 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-06-12 17:18:06,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:18:06,140 INFO L225 Difference]: With dead ends: 5944 [2021-06-12 17:18:06,140 INFO L226 Difference]: Without dead ends: 4869 [2021-06-12 17:18:06,141 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 61.3ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-06-12 17:18:06,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4869 states. [2021-06-12 17:18:06,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4869 to 4383. [2021-06-12 17:18:06,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4383 states, 4382 states have (on average 3.543815609310817) internal successors, (15529), 4382 states have internal predecessors, (15529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:06,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4383 states to 4383 states and 15529 transitions. [2021-06-12 17:18:06,209 INFO L78 Accepts]: Start accepts. Automaton has 4383 states and 15529 transitions. Word has length 67 [2021-06-12 17:18:06,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:18:06,209 INFO L482 AbstractCegarLoop]: Abstraction has 4383 states and 15529 transitions. [2021-06-12 17:18:06,210 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:06,210 INFO L276 IsEmpty]: Start isEmpty. Operand 4383 states and 15529 transitions. [2021-06-12 17:18:06,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-06-12 17:18:06,215 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:18:06,215 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:18:06,215 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-12 17:18:06,215 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:18:06,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:18:06,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1749123924, now seen corresponding path program 2 times [2021-06-12 17:18:06,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:18:06,216 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460252164] [2021-06-12 17:18:06,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:18:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:18:06,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:18:06,285 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:18:06,285 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460252164] [2021-06-12 17:18:06,285 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460252164] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:18:06,285 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:18:06,285 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-12 17:18:06,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065984986] [2021-06-12 17:18:06,285 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-12 17:18:06,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:18:06,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-12 17:18:06,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-12 17:18:06,286 INFO L87 Difference]: Start difference. First operand 4383 states and 15529 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:06,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:18:06,377 INFO L93 Difference]: Finished difference Result 3087 states and 10696 transitions. [2021-06-12 17:18:06,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:18:06,377 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-06-12 17:18:06,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:18:06,377 INFO L225 Difference]: With dead ends: 3087 [2021-06-12 17:18:06,377 INFO L226 Difference]: Without dead ends: 0 [2021-06-12 17:18:06,378 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 75.7ms TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:18:06,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-12 17:18:06,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-12 17:18:06,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:06,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-12 17:18:06,378 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2021-06-12 17:18:06,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:18:06,378 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-12 17:18:06,378 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:18:06,378 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-12 17:18:06,378 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 17:18:06,379 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-12 17:18:06,380 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-12 17:18:06,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.06 05:18:06 BasicIcfg [2021-06-12 17:18:06,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-12 17:18:06,382 INFO L168 Benchmark]: Toolchain (without parser) took 20435.56 ms. Allocated memory was 194.0 MB in the beginning and 6.3 GB in the end (delta: 6.1 GB). Free memory was 157.4 MB in the beginning and 4.3 GB in the end (delta: -4.1 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. [2021-06-12 17:18:06,382 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 194.0 MB. Free memory is still 175.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-12 17:18:06,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 399.14 ms. Allocated memory is still 194.0 MB. Free memory was 157.2 MB in the beginning and 155.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-06-12 17:18:06,383 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.34 ms. Allocated memory is still 194.0 MB. Free memory was 155.2 MB in the beginning and 153.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-12 17:18:06,383 INFO L168 Benchmark]: Boogie Preprocessor took 14.90 ms. Allocated memory is still 194.0 MB. Free memory was 153.1 MB in the beginning and 151.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-12 17:18:06,383 INFO L168 Benchmark]: RCFGBuilder took 427.91 ms. Allocated memory is still 194.0 MB. Free memory was 151.7 MB in the beginning and 126.1 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2021-06-12 17:18:06,383 INFO L168 Benchmark]: TraceAbstraction took 19563.26 ms. Allocated memory was 194.0 MB in the beginning and 6.3 GB in the end (delta: 6.1 GB). Free memory was 125.5 MB in the beginning and 4.3 GB in the end (delta: -4.2 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. [2021-06-12 17:18:06,384 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 194.0 MB. Free memory is still 175.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 399.14 ms. Allocated memory is still 194.0 MB. Free memory was 157.2 MB in the beginning and 155.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 26.34 ms. Allocated memory is still 194.0 MB. Free memory was 155.2 MB in the beginning and 153.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.90 ms. Allocated memory is still 194.0 MB. Free memory was 153.1 MB in the beginning and 151.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 427.91 ms. Allocated memory is still 194.0 MB. Free memory was 151.7 MB in the beginning and 126.1 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 19563.26 ms. Allocated memory was 194.0 MB in the beginning and 6.3 GB in the end (delta: 6.1 GB). Free memory was 125.5 MB in the beginning and 4.3 GB in the end (delta: -4.2 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 126 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19467.4ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 790.6ms, AutomataDifference: 5573.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5118.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1609 SDtfs, 2860 SDslu, 5798 SDs, 0 SdLazy, 569 SolverSat, 143 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 390.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1359.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51814occurred in iteration=0, InterpolantAutomatonStates: 129, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 6215.5ms AutomataMinimizationTime, 12 MinimizatonAttempts, 29870 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 30.9ms SsaConstructionTime, 346.7ms SatisfiabilityAnalysisTime, 1195.2ms InterpolantComputationTime, 745 NumberOfCodeBlocks, 745 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 733 ConstructedInterpolants, 0 QuantifiedInterpolants, 3271 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...