/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 15:48:12,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 15:48:12,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 15:48:12,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-16 15:48:12,142 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-16 15:48:12,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-16 15:48:12,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-16 15:48:12,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-16 15:48:12,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-16 15:48:12,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-16 15:48:12,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-16 15:48:12,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-16 15:48:12,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-16 15:48:12,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-16 15:48:12,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-16 15:48:12,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-16 15:48:12,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-16 15:48:12,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-16 15:48:12,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-16 15:48:12,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-16 15:48:12,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-16 15:48:12,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-16 15:48:12,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-16 15:48:12,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-16 15:48:12,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-16 15:48:12,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-16 15:48:12,181 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-16 15:48:12,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-16 15:48:12,183 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-16 15:48:12,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-16 15:48:12,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-16 15:48:12,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-16 15:48:12,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-16 15:48:12,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-16 15:48:12,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-16 15:48:12,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-16 15:48:12,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-16 15:48:12,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-16 15:48:12,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-16 15:48:12,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-16 15:48:12,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-16 15:48:12,190 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-06-16 15:48:12,231 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 15:48:12,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 15:48:12,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 15:48:12,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 15:48:12,234 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 15:48:12,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 15:48:12,234 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 15:48:12,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 15:48:12,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 15:48:12,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 15:48:12,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 15:48:12,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 15:48:12,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 15:48:12,235 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 15:48:12,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 15:48:12,235 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 15:48:12,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 15:48:12,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 15:48:12,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 15:48:12,236 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 15:48:12,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 15:48:12,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 15:48:12,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 15:48:12,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 15:48:12,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 15:48:12,237 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 15:48:12,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 15:48:12,237 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 15:48:12,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 15:48:12,237 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-16 15:48:12,237 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 15:48:12,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 15:48:12,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 15:48:12,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 15:48:12,588 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-16 15:48:12,593 INFO L275 PluginConnector]: CDTParser initialized [2021-06-16 15:48:12,594 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2021-06-16 15:48:12,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62b954c69/fbe3a1157abe432abc9e0a8f078e70d0/FLAG0f0d3f6b2 [2021-06-16 15:48:13,179 INFO L306 CDTParser]: Found 1 translation units. [2021-06-16 15:48:13,179 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2021-06-16 15:48:13,189 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62b954c69/fbe3a1157abe432abc9e0a8f078e70d0/FLAG0f0d3f6b2 [2021-06-16 15:48:13,680 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62b954c69/fbe3a1157abe432abc9e0a8f078e70d0 [2021-06-16 15:48:13,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 15:48:13,683 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-16 15:48:13,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-16 15:48:13,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-16 15:48:13,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-16 15:48:13,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 03:48:13" (1/1) ... [2021-06-16 15:48:13,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d39ae50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:13, skipping insertion in model container [2021-06-16 15:48:13,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 03:48:13" (1/1) ... [2021-06-16 15:48:13,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-16 15:48:13,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-16 15:48:13,839 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i[949,962] [2021-06-16 15:48:14,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 15:48:14,054 INFO L203 MainTranslator]: Completed pre-run [2021-06-16 15:48:14,065 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i[949,962] [2021-06-16 15:48:14,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 15:48:14,150 INFO L208 MainTranslator]: Completed translation [2021-06-16 15:48:14,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:14 WrapperNode [2021-06-16 15:48:14,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-16 15:48:14,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 15:48:14,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 15:48:14,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 15:48:14,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:14" (1/1) ... [2021-06-16 15:48:14,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:14" (1/1) ... [2021-06-16 15:48:14,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 15:48:14,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 15:48:14,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 15:48:14,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 15:48:14,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:14" (1/1) ... [2021-06-16 15:48:14,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:14" (1/1) ... [2021-06-16 15:48:14,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:14" (1/1) ... [2021-06-16 15:48:14,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:14" (1/1) ... [2021-06-16 15:48:14,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:14" (1/1) ... [2021-06-16 15:48:14,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:14" (1/1) ... [2021-06-16 15:48:14,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:14" (1/1) ... [2021-06-16 15:48:14,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 15:48:14,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 15:48:14,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 15:48:14,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 15:48:14,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 15:48:14,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-16 15:48:14,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-16 15:48:14,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-16 15:48:14,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-16 15:48:14,373 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-16 15:48:14,373 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-16 15:48:14,373 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-16 15:48:14,373 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-16 15:48:14,373 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-16 15:48:14,373 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-16 15:48:14,373 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-16 15:48:14,374 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-16 15:48:14,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-16 15:48:14,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-16 15:48:14,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 15:48:14,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 15:48:14,375 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 15:48:14,742 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 15:48:14,742 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-16 15:48:14,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 03:48:14 BoogieIcfgContainer [2021-06-16 15:48:14,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 15:48:14,745 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 15:48:14,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 15:48:14,748 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 15:48:14,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.06 03:48:13" (1/3) ... [2021-06-16 15:48:14,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b3606f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 03:48:14, skipping insertion in model container [2021-06-16 15:48:14,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:48:14" (2/3) ... [2021-06-16 15:48:14,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b3606f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 03:48:14, skipping insertion in model container [2021-06-16 15:48:14,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 03:48:14" (3/3) ... [2021-06-16 15:48:14,750 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.opt.i [2021-06-16 15:48:14,754 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 15:48:14,754 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 15:48:14,754 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 15:48:14,755 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 15:48:14,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,777 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,777 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,777 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,777 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,779 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,779 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,779 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,779 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,779 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,779 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,779 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,779 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,779 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,780 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,780 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,780 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,780 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,781 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,781 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,781 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,781 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,781 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,781 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,781 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,782 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,782 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,782 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,782 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,782 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,782 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,782 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,782 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,782 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,783 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,784 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,784 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,785 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,785 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,788 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,789 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,789 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,789 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,790 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,790 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,790 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,790 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,792 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,792 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,792 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,792 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:48:14,793 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-16 15:48:14,809 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-16 15:48:14,822 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 15:48:14,823 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 15:48:14,823 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 15:48:14,823 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 15:48:14,823 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 15:48:14,823 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 15:48:14,823 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 15:48:14,823 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 15:48:20,548 INFO L276 IsEmpty]: Start isEmpty. Operand has 51815 states, 43283 states have (on average 2.5229766883071876) internal successors, (109202), 51814 states have internal predecessors, (109202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:20,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-16 15:48:20,689 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:20,690 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] [2021-06-16 15:48:20,690 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:20,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:20,722 INFO L82 PathProgramCache]: Analyzing trace with hash -352002722, now seen corresponding path program 1 times [2021-06-16 15:48:20,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:20,731 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500000308] [2021-06-16 15:48:20,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:21,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:21,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:21,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:21,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:21,083 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-16 15:48:21,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-16 15:48:21,103 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:48:21,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:48:21,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:21,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:21,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:21,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:21,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:21,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:21,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:48:21,166 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:21,167 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500000308] [2021-06-16 15:48:21,167 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500000308] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:21,167 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:21,167 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:48:21,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82604643] [2021-06-16 15:48:21,170 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:48:21,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:21,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:48:21,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:48:21,244 INFO L87 Difference]: Start difference. First operand has 51815 states, 43283 states have (on average 2.5229766883071876) internal successors, (109202), 51814 states have internal predecessors, (109202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:22,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:22,223 INFO L93 Difference]: Finished difference Result 101003 states and 219660 transitions. [2021-06-16 15:48:22,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 15:48:22,226 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-06-16 15:48:22,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:22,382 INFO L225 Difference]: With dead ends: 101003 [2021-06-16 15:48:22,383 INFO L226 Difference]: Without dead ends: 17399 [2021-06-16 15:48:22,384 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 156.2ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-16 15:48:22,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17399 states. [2021-06-16 15:48:22,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17399 to 13559. [2021-06-16 15:48:22,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13559 states, 13349 states have (on average 2.518091242789722) internal successors, (33614), 13558 states have internal predecessors, (33614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:22,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13559 states to 13559 states and 33614 transitions. [2021-06-16 15:48:22,959 INFO L78 Accepts]: Start accepts. Automaton has 13559 states and 33614 transitions. Word has length 56 [2021-06-16 15:48:22,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:22,960 INFO L482 AbstractCegarLoop]: Abstraction has 13559 states and 33614 transitions. [2021-06-16 15:48:22,960 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:22,960 INFO L276 IsEmpty]: Start isEmpty. Operand 13559 states and 33614 transitions. [2021-06-16 15:48:22,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-16 15:48:22,971 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:22,972 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] [2021-06-16 15:48:22,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 15:48:22,972 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:22,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:22,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1468799521, now seen corresponding path program 1 times [2021-06-16 15:48:22,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:22,973 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480492984] [2021-06-16 15:48:22,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:23,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:23,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:23,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:23,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:23,030 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-16 15:48:23,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-16 15:48:23,039 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:48:23,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:48:23,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:23,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:23,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:23,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:23,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:23,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:23,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:48:23,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:23,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480492984] [2021-06-16 15:48:23,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480492984] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:23,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:23,069 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:48:23,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781874502] [2021-06-16 15:48:23,070 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:48:23,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:23,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:48:23,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:48:23,070 INFO L87 Difference]: Start difference. First operand 13559 states and 33614 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:23,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:23,399 INFO L93 Difference]: Finished difference Result 20111 states and 51815 transitions. [2021-06-16 15:48:23,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 15:48:23,400 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-06-16 15:48:23,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:23,428 INFO L225 Difference]: With dead ends: 20111 [2021-06-16 15:48:23,428 INFO L226 Difference]: Without dead ends: 15023 [2021-06-16 15:48:23,430 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 124.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-16 15:48:23,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15023 states. [2021-06-16 15:48:23,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15023 to 12479. [2021-06-16 15:48:23,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12479 states, 12269 states have (on average 2.517727606161871) internal successors, (30890), 12478 states have internal predecessors, (30890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:23,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12479 states to 12479 states and 30890 transitions. [2021-06-16 15:48:23,888 INFO L78 Accepts]: Start accepts. Automaton has 12479 states and 30890 transitions. Word has length 58 [2021-06-16 15:48:23,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:23,889 INFO L482 AbstractCegarLoop]: Abstraction has 12479 states and 30890 transitions. [2021-06-16 15:48:23,890 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:23,890 INFO L276 IsEmpty]: Start isEmpty. Operand 12479 states and 30890 transitions. [2021-06-16 15:48:23,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-16 15:48:23,903 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:23,903 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] [2021-06-16 15:48:23,903 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 15:48:23,903 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:23,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:23,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1969049944, now seen corresponding path program 1 times [2021-06-16 15:48:23,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:23,909 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143328046] [2021-06-16 15:48:23,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:23,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:23,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:23,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:23,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:23,995 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:48:23,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:48:24,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:24,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:24,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:24,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:24,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:24,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:24,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:48:24,021 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:24,022 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143328046] [2021-06-16 15:48:24,022 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143328046] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:24,022 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:24,022 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-16 15:48:24,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049385234] [2021-06-16 15:48:24,022 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-16 15:48:24,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:24,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-16 15:48:24,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-16 15:48:24,023 INFO L87 Difference]: Start difference. First operand 12479 states and 30890 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:24,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:24,142 INFO L93 Difference]: Finished difference Result 13319 states and 34062 transitions. [2021-06-16 15:48:24,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 15:48:24,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-06-16 15:48:24,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:24,163 INFO L225 Difference]: With dead ends: 13319 [2021-06-16 15:48:24,164 INFO L226 Difference]: Without dead ends: 10439 [2021-06-16 15:48:24,164 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 72.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:48:24,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10439 states. [2021-06-16 15:48:24,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10439 to 10439. [2021-06-16 15:48:24,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10439 states, 10289 states have (on average 2.5259014481485083) internal successors, (25989), 10438 states have internal predecessors, (25989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:24,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10439 states to 10439 states and 25989 transitions. [2021-06-16 15:48:24,506 INFO L78 Accepts]: Start accepts. Automaton has 10439 states and 25989 transitions. Word has length 60 [2021-06-16 15:48:24,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:24,507 INFO L482 AbstractCegarLoop]: Abstraction has 10439 states and 25989 transitions. [2021-06-16 15:48:24,507 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:24,507 INFO L276 IsEmpty]: Start isEmpty. Operand 10439 states and 25989 transitions. [2021-06-16 15:48:24,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-16 15:48:24,517 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:24,517 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:48:24,517 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-16 15:48:24,517 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:24,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:24,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1844152077, now seen corresponding path program 1 times [2021-06-16 15:48:24,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:24,518 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534282774] [2021-06-16 15:48:24,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:24,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:24,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:24,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:24,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:24,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:24,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:24,562 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-16 15:48:24,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-16 15:48:24,570 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:48:24,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:48:24,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:24,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:24,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:24,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:24,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:24,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:24,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:48:24,599 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:24,599 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534282774] [2021-06-16 15:48:24,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534282774] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:24,600 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:24,600 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-16 15:48:24,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791312717] [2021-06-16 15:48:24,600 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-16 15:48:24,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:24,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-16 15:48:24,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-16 15:48:24,601 INFO L87 Difference]: Start difference. First operand 10439 states and 25989 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:24,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:24,763 INFO L93 Difference]: Finished difference Result 17051 states and 43540 transitions. [2021-06-16 15:48:24,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-16 15:48:24,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-16 15:48:24,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:24,783 INFO L225 Difference]: With dead ends: 17051 [2021-06-16 15:48:24,783 INFO L226 Difference]: Without dead ends: 8939 [2021-06-16 15:48:24,784 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 99.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-16 15:48:24,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8939 states. [2021-06-16 15:48:25,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8939 to 7243. [2021-06-16 15:48:25,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7243 states, 7143 states have (on average 2.591908161836763) internal successors, (18514), 7242 states have internal predecessors, (18514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:25,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7243 states to 7243 states and 18514 transitions. [2021-06-16 15:48:25,099 INFO L78 Accepts]: Start accepts. Automaton has 7243 states and 18514 transitions. Word has length 61 [2021-06-16 15:48:25,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:25,117 INFO L482 AbstractCegarLoop]: Abstraction has 7243 states and 18514 transitions. [2021-06-16 15:48:25,117 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:25,117 INFO L276 IsEmpty]: Start isEmpty. Operand 7243 states and 18514 transitions. [2021-06-16 15:48:25,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-16 15:48:25,127 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:25,127 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:48:25,128 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-16 15:48:25,128 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:25,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:25,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1967575342, now seen corresponding path program 1 times [2021-06-16 15:48:25,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:25,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412211165] [2021-06-16 15:48:25,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:25,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:25,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:25,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:25,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:25,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:25,253 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-16 15:48:25,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-16 15:48:25,262 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:48:25,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:48:25,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:25,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:25,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:25,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:25,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:25,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:25,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:48:25,295 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:25,295 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412211165] [2021-06-16 15:48:25,295 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412211165] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:25,295 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:25,295 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:48:25,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571204725] [2021-06-16 15:48:25,295 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:48:25,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:25,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:48:25,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:48:25,296 INFO L87 Difference]: Start difference. First operand 7243 states and 18514 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:25,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:25,419 INFO L93 Difference]: Finished difference Result 10379 states and 29025 transitions. [2021-06-16 15:48:25,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 15:48:25,420 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-06-16 15:48:25,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:25,441 INFO L225 Difference]: With dead ends: 10379 [2021-06-16 15:48:25,441 INFO L226 Difference]: Without dead ends: 7307 [2021-06-16 15:48:25,442 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 88.3ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-16 15:48:25,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7307 states. [2021-06-16 15:48:25,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7307 to 5467. [2021-06-16 15:48:25,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5367 states have (on average 2.547233091112353) internal successors, (13671), 5466 states have internal predecessors, (13671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:25,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 13671 transitions. [2021-06-16 15:48:25,554 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 13671 transitions. Word has length 63 [2021-06-16 15:48:25,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:25,555 INFO L482 AbstractCegarLoop]: Abstraction has 5467 states and 13671 transitions. [2021-06-16 15:48:25,555 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:25,555 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 13671 transitions. [2021-06-16 15:48:25,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-06-16 15:48:25,563 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:25,563 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:48:25,564 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-16 15:48:25,564 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:25,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:25,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1990482136, now seen corresponding path program 1 times [2021-06-16 15:48:25,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:25,564 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844563929] [2021-06-16 15:48:25,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:25,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:25,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:25,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:25,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:25,598 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:48:25,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:48:25,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:25,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:48:25,615 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:48:25,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:25,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:25,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:25,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:48:25,623 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:25,623 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844563929] [2021-06-16 15:48:25,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844563929] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:25,623 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:25,623 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-16 15:48:25,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079695098] [2021-06-16 15:48:25,623 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-16 15:48:25,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:25,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-16 15:48:25,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-16 15:48:25,624 INFO L87 Difference]: Start difference. First operand 5467 states and 13671 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:25,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:25,801 INFO L93 Difference]: Finished difference Result 7463 states and 18687 transitions. [2021-06-16 15:48:25,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 15:48:25,801 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-06-16 15:48:25,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:25,813 INFO L225 Difference]: With dead ends: 7463 [2021-06-16 15:48:25,813 INFO L226 Difference]: Without dead ends: 5263 [2021-06-16 15:48:25,813 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 60.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:48:25,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5263 states. [2021-06-16 15:48:25,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5263 to 5263. [2021-06-16 15:48:25,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5163 states have (on average 2.5521983343017625) internal successors, (13177), 5262 states have internal predecessors, (13177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:26,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 13177 transitions. [2021-06-16 15:48:26,004 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 13177 transitions. Word has length 64 [2021-06-16 15:48:26,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:26,004 INFO L482 AbstractCegarLoop]: Abstraction has 5263 states and 13177 transitions. [2021-06-16 15:48:26,004 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:26,005 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 13177 transitions. [2021-06-16 15:48:26,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-16 15:48:26,012 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:26,012 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:48:26,012 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-16 15:48:26,012 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:26,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:26,012 INFO L82 PathProgramCache]: Analyzing trace with hash 963609714, now seen corresponding path program 1 times [2021-06-16 15:48:26,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:26,013 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42590237] [2021-06-16 15:48:26,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:26,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:26,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:26,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:26,058 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:48:26,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:48:26,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:48:26,076 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:48:26,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:26,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:26,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:48:26,084 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:26,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42590237] [2021-06-16 15:48:26,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42590237] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:26,084 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:26,084 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:48:26,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890831974] [2021-06-16 15:48:26,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:48:26,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:26,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:48:26,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:48:26,085 INFO L87 Difference]: Start difference. First operand 5263 states and 13177 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:26,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:26,197 INFO L93 Difference]: Finished difference Result 6403 states and 15924 transitions. [2021-06-16 15:48:26,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 15:48:26,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-06-16 15:48:26,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:26,206 INFO L225 Difference]: With dead ends: 6403 [2021-06-16 15:48:26,207 INFO L226 Difference]: Without dead ends: 4343 [2021-06-16 15:48:26,207 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 72.6ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-16 15:48:26,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4343 states. [2021-06-16 15:48:26,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4343 to 4343. [2021-06-16 15:48:26,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4343 states, 4247 states have (on average 2.508123381210266) internal successors, (10652), 4342 states have internal predecessors, (10652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:26,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4343 states to 4343 states and 10652 transitions. [2021-06-16 15:48:26,277 INFO L78 Accepts]: Start accepts. Automaton has 4343 states and 10652 transitions. Word has length 65 [2021-06-16 15:48:26,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:26,278 INFO L482 AbstractCegarLoop]: Abstraction has 4343 states and 10652 transitions. [2021-06-16 15:48:26,278 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:26,278 INFO L276 IsEmpty]: Start isEmpty. Operand 4343 states and 10652 transitions. [2021-06-16 15:48:26,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-16 15:48:26,284 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:26,284 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] [2021-06-16 15:48:26,284 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-16 15:48:26,284 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:26,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:26,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1771958913, now seen corresponding path program 1 times [2021-06-16 15:48:26,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:26,285 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872373062] [2021-06-16 15:48:26,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:26,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:26,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:26,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:26,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:26,322 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:48:26,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:48:26,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:48:26,342 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:48:26,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:26,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:26,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:48:26,386 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:26,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872373062] [2021-06-16 15:48:26,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872373062] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:26,386 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:26,386 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-16 15:48:26,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408728959] [2021-06-16 15:48:26,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-16 15:48:26,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:26,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-16 15:48:26,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-16 15:48:26,387 INFO L87 Difference]: Start difference. First operand 4343 states and 10652 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:26,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:26,523 INFO L93 Difference]: Finished difference Result 4280 states and 10043 transitions. [2021-06-16 15:48:26,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-16 15:48:26,524 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-06-16 15:48:26,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:26,529 INFO L225 Difference]: With dead ends: 4280 [2021-06-16 15:48:26,529 INFO L226 Difference]: Without dead ends: 2792 [2021-06-16 15:48:26,529 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 132.0ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-16 15:48:26,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2021-06-16 15:48:26,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2021-06-16 15:48:26,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2720 states have (on average 2.2253676470588237) internal successors, (6053), 2791 states have internal predecessors, (6053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:26,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 6053 transitions. [2021-06-16 15:48:26,576 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 6053 transitions. Word has length 66 [2021-06-16 15:48:26,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:26,576 INFO L482 AbstractCegarLoop]: Abstraction has 2792 states and 6053 transitions. [2021-06-16 15:48:26,577 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:26,577 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 6053 transitions. [2021-06-16 15:48:26,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-06-16 15:48:26,581 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:26,581 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, 1] [2021-06-16 15:48:26,581 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-16 15:48:26,581 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:26,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:26,581 INFO L82 PathProgramCache]: Analyzing trace with hash 216445392, now seen corresponding path program 1 times [2021-06-16 15:48:26,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:26,582 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612385440] [2021-06-16 15:48:26,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:26,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:26,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:26,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:26,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:26,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:26,650 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:48:26,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:48:26,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:48:26,673 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:48:26,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:26,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:26,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:48:26,686 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:26,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612385440] [2021-06-16 15:48:26,686 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612385440] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:26,686 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:26,686 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-16 15:48:26,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081843872] [2021-06-16 15:48:26,687 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-16 15:48:26,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:26,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-16 15:48:26,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-16 15:48:26,687 INFO L87 Difference]: Start difference. First operand 2792 states and 6053 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:26,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:26,838 INFO L93 Difference]: Finished difference Result 2252 states and 4345 transitions. [2021-06-16 15:48:26,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-16 15:48:26,838 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-06-16 15:48:26,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:26,841 INFO L225 Difference]: With dead ends: 2252 [2021-06-16 15:48:26,841 INFO L226 Difference]: Without dead ends: 1277 [2021-06-16 15:48:26,841 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 118.5ms TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-06-16 15:48:26,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2021-06-16 15:48:26,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1277. [2021-06-16 15:48:26,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1277 states, 1250 states have (on average 1.7024) internal successors, (2128), 1276 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:26,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 2128 transitions. [2021-06-16 15:48:26,860 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 2128 transitions. Word has length 68 [2021-06-16 15:48:26,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:26,860 INFO L482 AbstractCegarLoop]: Abstraction has 1277 states and 2128 transitions. [2021-06-16 15:48:26,861 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:26,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 2128 transitions. [2021-06-16 15:48:26,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-16 15:48:26,862 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:26,863 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, 1, 1, 1] [2021-06-16 15:48:26,863 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-16 15:48:26,863 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:26,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:26,864 INFO L82 PathProgramCache]: Analyzing trace with hash 350918627, now seen corresponding path program 1 times [2021-06-16 15:48:26,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:26,864 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412823840] [2021-06-16 15:48:26,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:26,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:26,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:26,921 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-16 15:48:26,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-16 15:48:26,933 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:48:26,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:48:26,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:26,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:26,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:26,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:26,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:48:26,965 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:26,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412823840] [2021-06-16 15:48:26,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412823840] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:26,965 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:26,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:48:26,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296137057] [2021-06-16 15:48:26,966 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:48:26,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:26,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:48:26,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:48:26,966 INFO L87 Difference]: Start difference. First operand 1277 states and 2128 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:27,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:27,066 INFO L93 Difference]: Finished difference Result 1851 states and 3314 transitions. [2021-06-16 15:48:27,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 15:48:27,067 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-06-16 15:48:27,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:27,069 INFO L225 Difference]: With dead ends: 1851 [2021-06-16 15:48:27,069 INFO L226 Difference]: Without dead ends: 1257 [2021-06-16 15:48:27,069 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 94.9ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:48:27,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2021-06-16 15:48:27,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1093. [2021-06-16 15:48:27,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1093 states, 1066 states have (on average 1.7711069418386491) internal successors, (1888), 1092 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:27,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1888 transitions. [2021-06-16 15:48:27,083 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1888 transitions. Word has length 70 [2021-06-16 15:48:27,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:27,083 INFO L482 AbstractCegarLoop]: Abstraction has 1093 states and 1888 transitions. [2021-06-16 15:48:27,083 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:27,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1888 transitions. [2021-06-16 15:48:27,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-16 15:48:27,085 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:27,085 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, 1, 1, 1] [2021-06-16 15:48:27,085 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-16 15:48:27,085 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:27,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:27,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1516461539, now seen corresponding path program 2 times [2021-06-16 15:48:27,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:27,086 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041099959] [2021-06-16 15:48:27,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:27,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:27,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:27,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:27,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:27,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:27,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:27,137 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:48:27,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:48:27,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:27,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:27,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:27,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:27,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:27,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:27,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:48:27,168 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:27,169 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041099959] [2021-06-16 15:48:27,169 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041099959] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:27,169 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:27,169 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:48:27,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202932932] [2021-06-16 15:48:27,169 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:48:27,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:27,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:48:27,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:48:27,170 INFO L87 Difference]: Start difference. First operand 1093 states and 1888 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:27,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:27,246 INFO L93 Difference]: Finished difference Result 1907 states and 3370 transitions. [2021-06-16 15:48:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 15:48:27,247 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-06-16 15:48:27,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:27,248 INFO L225 Difference]: With dead ends: 1907 [2021-06-16 15:48:27,249 INFO L226 Difference]: Without dead ends: 989 [2021-06-16 15:48:27,249 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 67.6ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:48:27,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2021-06-16 15:48:27,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 989. [2021-06-16 15:48:27,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 962 states have (on average 1.837837837837838) internal successors, (1768), 988 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:27,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1768 transitions. [2021-06-16 15:48:27,260 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1768 transitions. Word has length 70 [2021-06-16 15:48:27,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:27,261 INFO L482 AbstractCegarLoop]: Abstraction has 989 states and 1768 transitions. [2021-06-16 15:48:27,261 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:27,261 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1768 transitions. [2021-06-16 15:48:27,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-16 15:48:27,262 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:27,262 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, 1, 1, 1] [2021-06-16 15:48:27,262 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-16 15:48:27,262 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:27,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:27,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1328678813, now seen corresponding path program 3 times [2021-06-16 15:48:27,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:27,263 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376302838] [2021-06-16 15:48:27,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:27,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:27,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:27,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:27,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:27,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:27,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:27,295 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:48:27,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:48:27,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:27,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:27,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:27,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:27,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:27,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:27,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:48:27,325 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:27,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376302838] [2021-06-16 15:48:27,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376302838] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:27,325 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:27,325 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:48:27,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756188513] [2021-06-16 15:48:27,325 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:48:27,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:27,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:48:27,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:48:27,326 INFO L87 Difference]: Start difference. First operand 989 states and 1768 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:27,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:27,378 INFO L93 Difference]: Finished difference Result 881 states and 1552 transitions. [2021-06-16 15:48:27,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 15:48:27,378 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-06-16 15:48:27,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:27,378 INFO L225 Difference]: With dead ends: 881 [2021-06-16 15:48:27,379 INFO L226 Difference]: Without dead ends: 0 [2021-06-16 15:48:27,379 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 60.6ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:48:27,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-16 15:48:27,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-16 15:48:27,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:27,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-16 15:48:27,379 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2021-06-16 15:48:27,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:27,379 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-16 15:48:27,379 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:27,379 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-16 15:48:27,379 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-16 15:48:27,380 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-16 15:48:27,381 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-16 15:48:27,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.06 03:48:27 BasicIcfg [2021-06-16 15:48:27,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-16 15:48:27,383 INFO L168 Benchmark]: Toolchain (without parser) took 13699.78 ms. Allocated memory was 223.3 MB in the beginning and 4.1 GB in the end (delta: 3.9 GB). Free memory was 186.6 MB in the beginning and 3.7 GB in the end (delta: -3.5 GB). Peak memory consumption was 433.6 MB. Max. memory is 8.0 GB. [2021-06-16 15:48:27,383 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 223.3 MB. Free memory is still 204.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 15:48:27,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 466.14 ms. Allocated memory is still 223.3 MB. Free memory was 186.4 MB in the beginning and 184.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-16 15:48:27,383 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.38 ms. Allocated memory is still 223.3 MB. Free memory was 184.9 MB in the beginning and 182.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-16 15:48:27,383 INFO L168 Benchmark]: Boogie Preprocessor took 30.28 ms. Allocated memory is still 223.3 MB. Free memory was 182.8 MB in the beginning and 181.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-16 15:48:27,383 INFO L168 Benchmark]: RCFGBuilder took 508.95 ms. Allocated memory is still 223.3 MB. Free memory was 181.8 MB in the beginning and 155.6 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2021-06-16 15:48:27,384 INFO L168 Benchmark]: TraceAbstraction took 12636.86 ms. Allocated memory was 223.3 MB in the beginning and 4.1 GB in the end (delta: 3.9 GB). Free memory was 155.1 MB in the beginning and 3.7 GB in the end (delta: -3.5 GB). Peak memory consumption was 402.2 MB. Max. memory is 8.0 GB. [2021-06-16 15:48:27,384 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 223.3 MB. Free memory is still 204.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 466.14 ms. Allocated memory is still 223.3 MB. Free memory was 186.4 MB in the beginning and 184.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 51.38 ms. Allocated memory is still 223.3 MB. Free memory was 184.9 MB in the beginning and 182.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.28 ms. Allocated memory is still 223.3 MB. Free memory was 182.8 MB in the beginning and 181.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 508.95 ms. Allocated memory is still 223.3 MB. Free memory was 181.8 MB in the beginning and 155.6 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 12636.86 ms. Allocated memory was 223.3 MB in the beginning and 4.1 GB in the end (delta: 3.9 GB). Free memory was 155.1 MB in the beginning and 3.7 GB in the end (delta: -3.5 GB). Peak memory consumption was 402.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 263708, positive: 256030, positive conditional: 256030, positive unconditional: 0, negative: 7678, negative conditional: 7678, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 261260, positive: 256030, positive conditional: 0, positive unconditional: 256030, negative: 5230, negative conditional: 0, negative unconditional: 5230, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1364, positive: 1343, positive conditional: 0, positive unconditional: 1343, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1364, positive: 1336, positive conditional: 0, positive unconditional: 1336, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 28, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 49, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 261260, positive: 254687, positive conditional: 0, positive unconditional: 254687, negative: 5209, negative conditional: 0, negative unconditional: 5209, unknown: 1364, unknown conditional: 0, unknown unconditional: 1364] , Statistics on independence cache: Total cache size (in pairs): 1364, Positive cache size: 1343, Positive conditional cache size: 0, Positive unconditional cache size: 1343, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Independence queries for same thread: 2448 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 127 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12559.1ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 396.0ms, AutomataDifference: 2887.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5543.2ms, PartialOrderReductionTime: 5533.8ms, HoareTripleCheckerStatistics: 1327 SDtfs, 2344 SDslu, 4526 SDs, 0 SdLazy, 575 SolverSat, 126 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 330.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1147.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51815occurred in iteration=0, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2146.5ms AutomataMinimizationTime, 12 MinimizatonAttempts, 10084 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 37.0ms SsaConstructionTime, 206.8ms SatisfiabilityAnalysisTime, 1103.2ms InterpolantComputationTime, 771 NumberOfCodeBlocks, 771 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 759 ConstructedInterpolants, 0 QuantifiedInterpolants, 3255 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...