/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/safe016_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 22:10:55,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 22:10:55,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 22:10:55,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-09 22:10:55,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-09 22:10:55,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-09 22:10:55,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-09 22:10:55,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-09 22:10:55,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-09 22:10:55,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-09 22:10:55,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-09 22:10:55,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-09 22:10:55,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 22:10:55,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 22:10:55,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 22:10:55,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 22:10:55,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 22:10:55,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 22:10:55,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 22:10:55,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 22:10:55,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 22:10:55,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 22:10:55,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 22:10:55,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 22:10:55,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-09 22:10:55,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-09 22:10:55,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-09 22:10:55,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-09 22:10:55,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-09 22:10:55,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-09 22:10:55,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-09 22:10:55,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-09 22:10:55,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-09 22:10:55,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-09 22:10:55,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-09 22:10:55,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-09 22:10:55,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-09 22:10:55,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-09 22:10:55,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 22:10:55,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 22:10:55,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 22:10:55,619 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-07-09 22:10:55,674 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 22:10:55,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 22:10:55,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 22:10:55,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 22:10:55,677 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 22:10:55,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 22:10:55,677 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 22:10:55,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 22:10:55,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 22:10:55,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 22:10:55,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 22:10:55,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 22:10:55,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 22:10:55,678 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 22:10:55,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 22:10:55,679 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 22:10:55,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 22:10:55,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 22:10:55,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 22:10:55,679 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 22:10:55,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 22:10:55,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 22:10:55,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 22:10:55,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 22:10:55,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 22:10:55,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 22:10:55,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 22:10:55,680 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 22:10:55,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 22:10:55,680 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-09 22:10:55,680 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 22:10:55,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 22:10:55,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 22:10:55,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 22:10:55,955 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 22:10:55,957 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 22:10:55,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i [2021-07-09 22:10:56,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/403457c34/5c0a396114b04b2abbf1ff960dc38477/FLAG07065d0eb [2021-07-09 22:10:56,350 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 22:10:56,350 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i [2021-07-09 22:10:56,375 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/403457c34/5c0a396114b04b2abbf1ff960dc38477/FLAG07065d0eb [2021-07-09 22:10:56,744 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/403457c34/5c0a396114b04b2abbf1ff960dc38477 [2021-07-09 22:10:56,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 22:10:56,748 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 22:10:56,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 22:10:56,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 22:10:56,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 22:10:56,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 10:10:56" (1/1) ... [2021-07-09 22:10:56,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f6f3b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:56, skipping insertion in model container [2021-07-09 22:10:56,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 10:10:56" (1/1) ... [2021-07-09 22:10:56,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 22:10:56,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 22:10:56,950 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i[949,962] [2021-07-09 22:10:57,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 22:10:57,086 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 22:10:57,101 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i[949,962] [2021-07-09 22:10:57,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 22:10:57,167 INFO L208 MainTranslator]: Completed translation [2021-07-09 22:10:57,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:57 WrapperNode [2021-07-09 22:10:57,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 22:10:57,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 22:10:57,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 22:10:57,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 22:10:57,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:57" (1/1) ... [2021-07-09 22:10:57,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:57" (1/1) ... [2021-07-09 22:10:57,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 22:10:57,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 22:10:57,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 22:10:57,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 22:10:57,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:57" (1/1) ... [2021-07-09 22:10:57,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:57" (1/1) ... [2021-07-09 22:10:57,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:57" (1/1) ... [2021-07-09 22:10:57,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:57" (1/1) ... [2021-07-09 22:10:57,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:57" (1/1) ... [2021-07-09 22:10:57,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:57" (1/1) ... [2021-07-09 22:10:57,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:57" (1/1) ... [2021-07-09 22:10:57,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 22:10:57,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 22:10:57,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 22:10:57,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 22:10:57,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 22:10:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 22:10:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 22:10:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 22:10:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 22:10:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-09 22:10:57,323 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-09 22:10:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-09 22:10:57,324 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-09 22:10:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-09 22:10:57,324 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-09 22:10:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-07-09 22:10:57,324 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-07-09 22:10:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 22:10:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 22:10:57,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 22:10:57,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 22:10:57,326 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 22:10:57,558 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 22:10:57,558 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-09 22:10:57,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 10:10:57 BoogieIcfgContainer [2021-07-09 22:10:57,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 22:10:57,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 22:10:57,561 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 22:10:57,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 22:10:57,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 10:10:56" (1/3) ... [2021-07-09 22:10:57,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6e31c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 10:10:57, skipping insertion in model container [2021-07-09 22:10:57,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:10:57" (2/3) ... [2021-07-09 22:10:57,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6e31c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 10:10:57, skipping insertion in model container [2021-07-09 22:10:57,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 10:10:57" (3/3) ... [2021-07-09 22:10:57,565 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_tso.opt.i [2021-07-09 22:10:57,569 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 22:10:57,569 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 22:10:57,569 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 22:10:57,570 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 22:10:57,594 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,595 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,595 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,595 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,595 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,595 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,595 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,595 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,596 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,596 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,596 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,596 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,596 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,596 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,596 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,597 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,597 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,597 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,597 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,597 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,597 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,597 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,598 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,598 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,598 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,598 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,598 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,598 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,598 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,598 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,599 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,599 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,599 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,599 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,599 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,599 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,600 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,600 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,600 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,600 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,600 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,600 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,600 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,600 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,604 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,605 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,605 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,605 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,606 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,607 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,607 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,607 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,611 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,611 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,611 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,611 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,613 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,613 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,613 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,613 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,615 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,615 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,615 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,615 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:10:57,616 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 22:10:57,632 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-07-09 22:10:57,657 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 22:10:57,657 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 22:10:57,657 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 22:10:57,657 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 22:10:57,657 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 22:10:57,658 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 22:10:57,658 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 22:10:57,658 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 22:10:59,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 28882 states, 24122 states have (on average 2.237957051654092) internal successors, (53984), 28881 states have internal predecessors, (53984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:10:59,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-07-09 22:10:59,443 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:10:59,444 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:10:59,444 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:10:59,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:10:59,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1675625032, now seen corresponding path program 1 times [2021-07-09 22:10:59,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:10:59,453 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105714685] [2021-07-09 22:10:59,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:10:59,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:10:59,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:10:59,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:10:59,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:10:59,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:10:59,808 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-09 22:10:59,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-09 22:10:59,822 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:10:59,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:10:59,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:10:59,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:10:59,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:10:59,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:10:59,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:10:59,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:10:59,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:10:59,884 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:10:59,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105714685] [2021-07-09 22:10:59,886 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105714685] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:10:59,886 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:10:59,886 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:10:59,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049958026] [2021-07-09 22:10:59,889 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:10:59,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:10:59,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:10:59,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:10:59,941 INFO L87 Difference]: Start difference. First operand has 28882 states, 24122 states have (on average 2.237957051654092) internal successors, (53984), 28881 states have internal predecessors, (53984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:00,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:00,631 INFO L93 Difference]: Finished difference Result 53186 states and 102705 transitions. [2021-07-09 22:11:00,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 22:11:00,632 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-07-09 22:11:00,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:00,755 INFO L225 Difference]: With dead ends: 53186 [2021-07-09 22:11:00,755 INFO L226 Difference]: Without dead ends: 17528 [2021-07-09 22:11:00,756 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 191.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-09 22:11:00,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17528 states. [2021-07-09 22:11:01,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17528 to 12136. [2021-07-09 22:11:01,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12136 states, 11926 states have (on average 2.506037229582425) internal successors, (29887), 12135 states have internal predecessors, (29887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:01,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12136 states to 12136 states and 29887 transitions. [2021-07-09 22:11:01,471 INFO L78 Accepts]: Start accepts. Automaton has 12136 states and 29887 transitions. Word has length 55 [2021-07-09 22:11:01,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:01,471 INFO L482 AbstractCegarLoop]: Abstraction has 12136 states and 29887 transitions. [2021-07-09 22:11:01,472 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:01,472 INFO L276 IsEmpty]: Start isEmpty. Operand 12136 states and 29887 transitions. [2021-07-09 22:11:01,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-07-09 22:11:01,482 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:01,482 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:11:01,483 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 22:11:01,483 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:01,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:01,483 INFO L82 PathProgramCache]: Analyzing trace with hash 296761689, now seen corresponding path program 1 times [2021-07-09 22:11:01,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:01,484 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090844631] [2021-07-09 22:11:01,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:01,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:01,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:01,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:01,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:01,534 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-09 22:11:01,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-09 22:11:01,543 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:11:01,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:11:01,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:01,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:01,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:01,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:01,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:01,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:01,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:01,573 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:01,573 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090844631] [2021-07-09 22:11:01,574 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090844631] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:01,574 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:01,574 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:11:01,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353662713] [2021-07-09 22:11:01,575 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:11:01,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:01,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:11:01,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:11:01,576 INFO L87 Difference]: Start difference. First operand 12136 states and 29887 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:01,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:01,967 INFO L93 Difference]: Finished difference Result 21304 states and 55052 transitions. [2021-07-09 22:11:01,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 22:11:01,968 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-07-09 22:11:01,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:02,033 INFO L225 Difference]: With dead ends: 21304 [2021-07-09 22:11:02,033 INFO L226 Difference]: Without dead ends: 15448 [2021-07-09 22:11:02,034 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 142.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-09 22:11:02,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15448 states. [2021-07-09 22:11:02,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15448 to 10952. [2021-07-09 22:11:02,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10952 states, 10742 states have (on average 2.516663563582201) internal successors, (27034), 10951 states have internal predecessors, (27034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:02,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10952 states to 10952 states and 27034 transitions. [2021-07-09 22:11:02,408 INFO L78 Accepts]: Start accepts. Automaton has 10952 states and 27034 transitions. Word has length 57 [2021-07-09 22:11:02,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:02,408 INFO L482 AbstractCegarLoop]: Abstraction has 10952 states and 27034 transitions. [2021-07-09 22:11:02,408 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:02,408 INFO L276 IsEmpty]: Start isEmpty. Operand 10952 states and 27034 transitions. [2021-07-09 22:11:02,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-07-09 22:11:02,421 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:02,421 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:11:02,421 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 22:11:02,422 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:02,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:02,422 INFO L82 PathProgramCache]: Analyzing trace with hash 281837946, now seen corresponding path program 1 times [2021-07-09 22:11:02,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:02,422 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353383914] [2021-07-09 22:11:02,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:02,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:02,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:02,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:02,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:02,635 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-09 22:11:02,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-09 22:11:02,651 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:11:02,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:11:02,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:02,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:02,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:02,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:02,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:02,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:02,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:02,681 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:02,682 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353383914] [2021-07-09 22:11:02,682 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353383914] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:02,682 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:02,682 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:11:02,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560766164] [2021-07-09 22:11:02,683 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:11:02,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:02,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:11:02,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:11:02,684 INFO L87 Difference]: Start difference. First operand 10952 states and 27034 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:02,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:02,916 INFO L93 Difference]: Finished difference Result 16920 states and 43774 transitions. [2021-07-09 22:11:02,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 22:11:02,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-07-09 22:11:02,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:02,959 INFO L225 Difference]: With dead ends: 16920 [2021-07-09 22:11:02,959 INFO L226 Difference]: Without dead ends: 13442 [2021-07-09 22:11:02,959 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 131.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-09 22:11:03,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13442 states. [2021-07-09 22:11:03,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13442 to 9002. [2021-07-09 22:11:03,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 8852 states have (on average 2.5184139177586986) internal successors, (22293), 9001 states have internal predecessors, (22293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:03,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 22293 transitions. [2021-07-09 22:11:03,313 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 22293 transitions. Word has length 59 [2021-07-09 22:11:03,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:03,313 INFO L482 AbstractCegarLoop]: Abstraction has 9002 states and 22293 transitions. [2021-07-09 22:11:03,313 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:03,314 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 22293 transitions. [2021-07-09 22:11:03,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-09 22:11:03,324 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:03,324 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:11:03,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 22:11:03,325 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:03,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:03,325 INFO L82 PathProgramCache]: Analyzing trace with hash -684603675, now seen corresponding path program 1 times [2021-07-09 22:11:03,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:03,325 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841465746] [2021-07-09 22:11:03,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:03,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:03,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:03,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:03,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:03,375 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-09 22:11:03,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-09 22:11:03,383 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:11:03,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:11:03,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:03,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:03,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:03,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:03,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:03,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:03,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:03,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:03,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841465746] [2021-07-09 22:11:03,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841465746] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:03,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:03,410 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:11:03,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836197387] [2021-07-09 22:11:03,410 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:11:03,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:03,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:11:03,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:11:03,411 INFO L87 Difference]: Start difference. First operand 9002 states and 22293 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:03,648 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2021-07-09 22:11:03,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:03,724 INFO L93 Difference]: Finished difference Result 16586 states and 46721 transitions. [2021-07-09 22:11:03,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 22:11:03,724 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-07-09 22:11:03,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:03,754 INFO L225 Difference]: With dead ends: 16586 [2021-07-09 22:11:03,754 INFO L226 Difference]: Without dead ends: 11618 [2021-07-09 22:11:03,755 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 225.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-09 22:11:03,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11618 states. [2021-07-09 22:11:03,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11618 to 7274. [2021-07-09 22:11:03,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7274 states, 7124 states have (on average 2.571027512633352) internal successors, (18316), 7273 states have internal predecessors, (18316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:03,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7274 states to 7274 states and 18316 transitions. [2021-07-09 22:11:03,930 INFO L78 Accepts]: Start accepts. Automaton has 7274 states and 18316 transitions. Word has length 60 [2021-07-09 22:11:03,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:03,931 INFO L482 AbstractCegarLoop]: Abstraction has 7274 states and 18316 transitions. [2021-07-09 22:11:03,931 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:03,931 INFO L276 IsEmpty]: Start isEmpty. Operand 7274 states and 18316 transitions. [2021-07-09 22:11:03,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-07-09 22:11:03,939 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:03,940 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:11:03,940 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 22:11:03,940 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:03,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:03,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1532235895, now seen corresponding path program 1 times [2021-07-09 22:11:03,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:03,940 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890408622] [2021-07-09 22:11:03,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:03,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:03,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:03,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:03,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:03,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:03,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:03,978 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-09 22:11:03,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-09 22:11:03,987 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:11:03,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:11:04,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:04,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:04,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:04,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:04,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:04,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:04,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:04,019 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:04,019 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890408622] [2021-07-09 22:11:04,019 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890408622] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:04,019 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:04,019 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 22:11:04,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266862878] [2021-07-09 22:11:04,020 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 22:11:04,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:04,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 22:11:04,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-07-09 22:11:04,021 INFO L87 Difference]: Start difference. First operand 7274 states and 18316 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:04,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:04,231 INFO L93 Difference]: Finished difference Result 14998 states and 38860 transitions. [2021-07-09 22:11:04,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 22:11:04,245 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-07-09 22:11:04,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:04,287 INFO L225 Difference]: With dead ends: 14998 [2021-07-09 22:11:04,287 INFO L226 Difference]: Without dead ends: 9538 [2021-07-09 22:11:04,287 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 112.9ms TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-07-09 22:11:04,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9538 states. [2021-07-09 22:11:04,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9538 to 6594. [2021-07-09 22:11:04,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6594 states, 6454 states have (on average 2.5980787108769756) internal successors, (16768), 6593 states have internal predecessors, (16768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:04,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6594 states to 6594 states and 16768 transitions. [2021-07-09 22:11:04,477 INFO L78 Accepts]: Start accepts. Automaton has 6594 states and 16768 transitions. Word has length 61 [2021-07-09 22:11:04,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:04,477 INFO L482 AbstractCegarLoop]: Abstraction has 6594 states and 16768 transitions. [2021-07-09 22:11:04,477 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:04,478 INFO L276 IsEmpty]: Start isEmpty. Operand 6594 states and 16768 transitions. [2021-07-09 22:11:04,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-09 22:11:04,487 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:04,487 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:11:04,487 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 22:11:04,487 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:04,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:04,488 INFO L82 PathProgramCache]: Analyzing trace with hash -697267505, now seen corresponding path program 1 times [2021-07-09 22:11:04,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:04,488 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574234010] [2021-07-09 22:11:04,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:04,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:04,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:04,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:04,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:04,548 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-09 22:11:04,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-09 22:11:04,562 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:11:04,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:11:04,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:04,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:04,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:04,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:04,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:04,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:04,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:04,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:04,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574234010] [2021-07-09 22:11:04,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574234010] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:04,588 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:04,588 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:11:04,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626855316] [2021-07-09 22:11:04,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:11:04,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:04,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:11:04,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:11:04,589 INFO L87 Difference]: Start difference. First operand 6594 states and 16768 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:04,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:04,820 INFO L93 Difference]: Finished difference Result 13650 states and 37309 transitions. [2021-07-09 22:11:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 22:11:04,833 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-07-09 22:11:04,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:04,876 INFO L225 Difference]: With dead ends: 13650 [2021-07-09 22:11:04,876 INFO L226 Difference]: Without dead ends: 8430 [2021-07-09 22:11:04,877 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 111.4ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-09 22:11:04,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8430 states. [2021-07-09 22:11:04,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8430 to 5230. [2021-07-09 22:11:04,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5230 states, 5130 states have (on average 2.585964912280702) internal successors, (13266), 5229 states have internal predecessors, (13266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:05,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5230 states to 5230 states and 13266 transitions. [2021-07-09 22:11:05,011 INFO L78 Accepts]: Start accepts. Automaton has 5230 states and 13266 transitions. Word has length 62 [2021-07-09 22:11:05,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:05,011 INFO L482 AbstractCegarLoop]: Abstraction has 5230 states and 13266 transitions. [2021-07-09 22:11:05,011 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:05,011 INFO L276 IsEmpty]: Start isEmpty. Operand 5230 states and 13266 transitions. [2021-07-09 22:11:05,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-07-09 22:11:05,019 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:05,019 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:11:05,019 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 22:11:05,019 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:05,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:05,019 INFO L82 PathProgramCache]: Analyzing trace with hash -510748292, now seen corresponding path program 1 times [2021-07-09 22:11:05,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:05,020 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259657984] [2021-07-09 22:11:05,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:05,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:05,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:05,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:05,094 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:11:05,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:11:05,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:05,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:05,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:05,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:05,121 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:05,121 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259657984] [2021-07-09 22:11:05,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259657984] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:05,121 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:05,121 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:11:05,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469009290] [2021-07-09 22:11:05,122 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:11:05,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:05,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:11:05,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:11:05,122 INFO L87 Difference]: Start difference. First operand 5230 states and 13266 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:05,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:05,221 INFO L93 Difference]: Finished difference Result 6804 states and 17853 transitions. [2021-07-09 22:11:05,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 22:11:05,222 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-07-09 22:11:05,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:05,228 INFO L225 Difference]: With dead ends: 6804 [2021-07-09 22:11:05,228 INFO L226 Difference]: Without dead ends: 2662 [2021-07-09 22:11:05,229 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 54.6ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:11:05,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2021-07-09 22:11:05,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 2662. [2021-07-09 22:11:05,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2662 states, 2562 states have (on average 2.7845433255269323) internal successors, (7134), 2661 states have internal predecessors, (7134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:05,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2662 states to 2662 states and 7134 transitions. [2021-07-09 22:11:05,277 INFO L78 Accepts]: Start accepts. Automaton has 2662 states and 7134 transitions. Word has length 63 [2021-07-09 22:11:05,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:05,278 INFO L482 AbstractCegarLoop]: Abstraction has 2662 states and 7134 transitions. [2021-07-09 22:11:05,278 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:05,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2662 states and 7134 transitions. [2021-07-09 22:11:05,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-07-09 22:11:05,281 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:05,281 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:11:05,281 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 22:11:05,281 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:05,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:05,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1550253034, now seen corresponding path program 2 times [2021-07-09 22:11:05,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:05,282 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570988640] [2021-07-09 22:11:05,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:05,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:05,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:05,343 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-09 22:11:05,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-09 22:11:05,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:11:05,363 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-09 22:11:05,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:05,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:05,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:05,370 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:05,370 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570988640] [2021-07-09 22:11:05,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570988640] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:05,370 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:05,371 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 22:11:05,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712436623] [2021-07-09 22:11:05,371 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 22:11:05,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:05,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 22:11:05,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 22:11:05,372 INFO L87 Difference]: Start difference. First operand 2662 states and 7134 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:05,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:05,456 INFO L93 Difference]: Finished difference Result 3335 states and 8433 transitions. [2021-07-09 22:11:05,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 22:11:05,457 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-07-09 22:11:05,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:05,462 INFO L225 Difference]: With dead ends: 3335 [2021-07-09 22:11:05,462 INFO L226 Difference]: Without dead ends: 2523 [2021-07-09 22:11:05,463 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 59.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:11:05,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states. [2021-07-09 22:11:05,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 2523. [2021-07-09 22:11:05,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2423 states have (on average 2.8126289723483286) internal successors, (6815), 2522 states have internal predecessors, (6815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:05,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 6815 transitions. [2021-07-09 22:11:05,507 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 6815 transitions. Word has length 63 [2021-07-09 22:11:05,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:05,507 INFO L482 AbstractCegarLoop]: Abstraction has 2523 states and 6815 transitions. [2021-07-09 22:11:05,507 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:05,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 6815 transitions. [2021-07-09 22:11:05,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-07-09 22:11:05,511 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:05,511 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:11:05,511 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-09 22:11:05,511 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:05,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:05,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1804419905, now seen corresponding path program 1 times [2021-07-09 22:11:05,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:05,512 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463581336] [2021-07-09 22:11:05,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:05,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:05,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:05,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:05,582 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-09 22:11:05,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-09 22:11:05,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:11:05,601 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-09 22:11:05,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:05,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:05,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:05,610 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:05,610 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463581336] [2021-07-09 22:11:05,610 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463581336] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:05,610 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:05,610 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:11:05,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271985] [2021-07-09 22:11:05,610 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:11:05,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:05,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:11:05,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:11:05,611 INFO L87 Difference]: Start difference. First operand 2523 states and 6815 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:05,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:05,706 INFO L93 Difference]: Finished difference Result 2638 states and 6532 transitions. [2021-07-09 22:11:05,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 22:11:05,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-07-09 22:11:05,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:05,711 INFO L225 Difference]: With dead ends: 2638 [2021-07-09 22:11:05,711 INFO L226 Difference]: Without dead ends: 1912 [2021-07-09 22:11:05,712 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 71.1ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-09 22:11:05,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2021-07-09 22:11:05,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1912. [2021-07-09 22:11:05,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1912 states, 1816 states have (on average 2.782488986784141) internal successors, (5053), 1911 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:05,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 5053 transitions. [2021-07-09 22:11:05,744 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 5053 transitions. Word has length 64 [2021-07-09 22:11:05,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:05,745 INFO L482 AbstractCegarLoop]: Abstraction has 1912 states and 5053 transitions. [2021-07-09 22:11:05,745 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:05,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 5053 transitions. [2021-07-09 22:11:05,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-07-09 22:11:05,749 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:05,749 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:11:05,749 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-09 22:11:05,749 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:05,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:05,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1744205855, now seen corresponding path program 1 times [2021-07-09 22:11:05,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:05,750 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947445816] [2021-07-09 22:11:05,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:05,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:05,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:05,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:05,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:05,807 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-09 22:11:05,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-09 22:11:05,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:11:05,830 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-09 22:11:05,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:05,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:05,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:05,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:05,838 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:05,838 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947445816] [2021-07-09 22:11:05,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947445816] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:05,838 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:05,838 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 22:11:05,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484489584] [2021-07-09 22:11:05,839 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 22:11:05,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:05,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 22:11:05,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-09 22:11:05,840 INFO L87 Difference]: Start difference. First operand 1912 states and 5053 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:05,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:05,954 INFO L93 Difference]: Finished difference Result 1255 states and 2721 transitions. [2021-07-09 22:11:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 22:11:05,955 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-07-09 22:11:05,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:05,956 INFO L225 Difference]: With dead ends: 1255 [2021-07-09 22:11:05,956 INFO L226 Difference]: Without dead ends: 787 [2021-07-09 22:11:05,957 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 92.8ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-07-09 22:11:05,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2021-07-09 22:11:05,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 787. [2021-07-09 22:11:05,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 724 states have (on average 2.4378453038674035) internal successors, (1765), 786 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:05,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1765 transitions. [2021-07-09 22:11:05,967 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1765 transitions. Word has length 65 [2021-07-09 22:11:05,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:05,967 INFO L482 AbstractCegarLoop]: Abstraction has 787 states and 1765 transitions. [2021-07-09 22:11:05,967 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:05,967 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1765 transitions. [2021-07-09 22:11:05,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-07-09 22:11:05,968 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:05,968 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:11:05,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-09 22:11:05,969 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:05,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:05,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1577682012, now seen corresponding path program 1 times [2021-07-09 22:11:05,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:05,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8536295] [2021-07-09 22:11:05,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:06,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:06,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:06,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:06,015 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:11:06,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:11:06,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:06,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:06,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:06,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:06,041 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:06,042 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8536295] [2021-07-09 22:11:06,042 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8536295] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:06,042 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:06,042 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:11:06,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852615342] [2021-07-09 22:11:06,042 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:11:06,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:06,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:11:06,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:11:06,044 INFO L87 Difference]: Start difference. First operand 787 states and 1765 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:06,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:06,100 INFO L93 Difference]: Finished difference Result 1253 states and 2944 transitions. [2021-07-09 22:11:06,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 22:11:06,100 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-07-09 22:11:06,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:06,102 INFO L225 Difference]: With dead ends: 1253 [2021-07-09 22:11:06,102 INFO L226 Difference]: Without dead ends: 999 [2021-07-09 22:11:06,102 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 57.0ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:11:06,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2021-07-09 22:11:06,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 783. [2021-07-09 22:11:06,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 720 states have (on average 2.436111111111111) internal successors, (1754), 782 states have internal predecessors, (1754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:06,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1754 transitions. [2021-07-09 22:11:06,115 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1754 transitions. Word has length 67 [2021-07-09 22:11:06,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:06,116 INFO L482 AbstractCegarLoop]: Abstraction has 783 states and 1754 transitions. [2021-07-09 22:11:06,116 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:06,116 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1754 transitions. [2021-07-09 22:11:06,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-07-09 22:11:06,117 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:11:06,117 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:11:06,117 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-09 22:11:06,117 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:11:06,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:11:06,117 INFO L82 PathProgramCache]: Analyzing trace with hash -2070394900, now seen corresponding path program 2 times [2021-07-09 22:11:06,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:11:06,118 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578706114] [2021-07-09 22:11:06,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:11:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:11:06,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:06,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:06,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:06,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:06,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:11:06,169 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-09 22:11:06,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-09 22:11:06,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:11:06,189 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-09 22:11:06,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:11:06,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:11:06,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:11:06,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:11:06,197 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:11:06,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578706114] [2021-07-09 22:11:06,197 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578706114] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:11:06,197 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:11:06,197 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-09 22:11:06,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263632470] [2021-07-09 22:11:06,198 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-09 22:11:06,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:11:06,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-09 22:11:06,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-07-09 22:11:06,199 INFO L87 Difference]: Start difference. First operand 783 states and 1754 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:06,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:11:06,267 INFO L93 Difference]: Finished difference Result 261 states and 425 transitions. [2021-07-09 22:11:06,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 22:11:06,267 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-07-09 22:11:06,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:11:06,267 INFO L225 Difference]: With dead ends: 261 [2021-07-09 22:11:06,267 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 22:11:06,268 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 77.9ms TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-07-09 22:11:06,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 22:11:06,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 22:11:06,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:06,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 22:11:06,268 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2021-07-09 22:11:06,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:11:06,268 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 22:11:06,268 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:11:06,268 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 22:11:06,269 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 22:11:06,269 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-09 22:11:06,270 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 22:11:06,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 10:11:06 BasicIcfg [2021-07-09 22:11:06,271 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 22:11:06,272 INFO L168 Benchmark]: Toolchain (without parser) took 9523.81 ms. Allocated memory was 196.1 MB in the beginning and 2.6 GB in the end (delta: 2.4 GB). Free memory was 159.4 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.2 GB. Max. memory is 8.0 GB. [2021-07-09 22:11:06,272 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 196.1 MB. Free memory is still 177.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 22:11:06,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 418.63 ms. Allocated memory is still 196.1 MB. Free memory was 159.2 MB in the beginning and 168.9 MB in the end (delta: -9.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-07-09 22:11:06,275 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.28 ms. Allocated memory is still 196.1 MB. Free memory was 168.9 MB in the beginning and 166.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 22:11:06,275 INFO L168 Benchmark]: Boogie Preprocessor took 27.36 ms. Allocated memory is still 196.1 MB. Free memory was 166.8 MB in the beginning and 165.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-09 22:11:06,276 INFO L168 Benchmark]: RCFGBuilder took 286.62 ms. Allocated memory is still 196.1 MB. Free memory was 165.8 MB in the beginning and 140.1 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2021-07-09 22:11:06,277 INFO L168 Benchmark]: TraceAbstraction took 8710.19 ms. Allocated memory was 196.1 MB in the beginning and 2.6 GB in the end (delta: 2.4 GB). Free memory was 139.6 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.2 GB. Max. memory is 8.0 GB. [2021-07-09 22:11:06,283 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 196.1 MB. Free memory is still 177.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 418.63 ms. Allocated memory is still 196.1 MB. Free memory was 159.2 MB in the beginning and 168.9 MB in the end (delta: -9.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 75.28 ms. Allocated memory is still 196.1 MB. Free memory was 168.9 MB in the beginning and 166.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.36 ms. Allocated memory is still 196.1 MB. Free memory was 166.8 MB in the beginning and 165.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 286.62 ms. Allocated memory is still 196.1 MB. Free memory was 165.8 MB in the beginning and 140.1 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8710.19 ms. Allocated memory was 196.1 MB in the beginning and 2.6 GB in the end (delta: 2.4 GB). Free memory was 139.6 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.2 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 135326, positive: 131075, positive conditional: 131075, positive unconditional: 0, negative: 4251, negative conditional: 4251, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 134863, positive: 131075, positive conditional: 0, positive unconditional: 131075, negative: 3788, negative conditional: 0, negative unconditional: 3788, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 976, positive: 950, positive conditional: 0, positive unconditional: 950, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 976, positive: 943, positive conditional: 0, positive unconditional: 943, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 33, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 124, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 85, negative conditional: 0, negative unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 134863, positive: 130125, positive conditional: 0, positive unconditional: 130125, negative: 3762, negative conditional: 0, negative unconditional: 3762, unknown: 976, unknown conditional: 0, unknown unconditional: 976] , Statistics on independence cache: Total cache size (in pairs): 976, Positive cache size: 950, Positive conditional cache size: 0, Positive unconditional cache size: 950, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Independence queries for same thread: 463 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 126 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8614.2ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 209.4ms, AutomataDifference: 3047.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1646.8ms, PartialOrderReductionTime: 1623.8ms, HoareTripleCheckerStatistics: 1374 SDtfs, 2222 SDslu, 4628 SDs, 0 SdLazy, 587 SolverSat, 124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 333.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 166 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 1328.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28882occurred in iteration=0, InterpolantAutomatonStates: 130, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2077.9ms AutomataMinimizationTime, 12 MinimizatonAttempts, 25032 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 161.0ms SsaConstructionTime, 195.0ms SatisfiabilityAnalysisTime, 1115.3ms InterpolantComputationTime, 743 NumberOfCodeBlocks, 743 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 731 ConstructedInterpolants, 0 QuantifiedInterpolants, 2489 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...