/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/safe018_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 15:47:57,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 15:47:57,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 15:47:57,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-16 15:47:57,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-16 15:47:57,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-16 15:47:57,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-16 15:47:57,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-16 15:47:57,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-16 15:47:57,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-16 15:47:57,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-16 15:47:57,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-16 15:47:57,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-16 15:47:57,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-16 15:47:57,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-16 15:47:57,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-16 15:47:57,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-16 15:47:57,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-16 15:47:57,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-16 15:47:57,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-16 15:47:57,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-16 15:47:57,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-16 15:47:57,581 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-16 15:47:57,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-16 15:47:57,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-16 15:47:57,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-16 15:47:57,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-16 15:47:57,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-16 15:47:57,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-16 15:47:57,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-16 15:47:57,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-16 15:47:57,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-16 15:47:57,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-16 15:47:57,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-16 15:47:57,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-16 15:47:57,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-16 15:47:57,590 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-06-16 15:47:57,615 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 15:47:57,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 15:47:57,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 15:47:57,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 15:47:57,618 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 15:47:57,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 15:47:57,619 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 15:47:57,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 15:47:57,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 15:47:57,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 15:47:57,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 15:47:57,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 15:47:57,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 15:47:57,620 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 15:47:57,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 15:47:57,620 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 15:47:57,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 15:47:57,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 15:47:57,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 15:47:57,620 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 15:47:57,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 15:47:57,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 15:47:57,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 15:47:57,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 15:47:57,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 15:47:57,621 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 15:47:57,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 15:47:57,621 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 15:47:57,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 15:47:57,622 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-16 15:47:57,622 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 15:47:57,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 15:47:57,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 15:47:57,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 15:47:57,926 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-16 15:47:57,927 INFO L275 PluginConnector]: CDTParser initialized [2021-06-16 15:47:57,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i [2021-06-16 15:47:57,978 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/299b7156c/e069823e16974c219c9ce6d4c86ae497/FLAG5ea597a1b [2021-06-16 15:47:58,428 INFO L306 CDTParser]: Found 1 translation units. [2021-06-16 15:47:58,432 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i [2021-06-16 15:47:58,446 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/299b7156c/e069823e16974c219c9ce6d4c86ae497/FLAG5ea597a1b [2021-06-16 15:47:58,775 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/299b7156c/e069823e16974c219c9ce6d4c86ae497 [2021-06-16 15:47:58,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 15:47:58,779 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-16 15:47:58,781 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-16 15:47:58,781 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-16 15:47:58,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-16 15:47:58,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 03:47:58" (1/1) ... [2021-06-16 15:47:58,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c3a5d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:58, skipping insertion in model container [2021-06-16 15:47:58,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 03:47:58" (1/1) ... [2021-06-16 15:47:58,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-16 15:47:58,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-16 15:47:58,960 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/safe018_pso.opt.i[949,962] [2021-06-16 15:47:59,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 15:47:59,061 INFO L203 MainTranslator]: Completed pre-run [2021-06-16 15:47:59,069 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/safe018_pso.opt.i[949,962] [2021-06-16 15:47:59,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 15:47:59,130 INFO L208 MainTranslator]: Completed translation [2021-06-16 15:47:59,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:59 WrapperNode [2021-06-16 15:47:59,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-16 15:47:59,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 15:47:59,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 15:47:59,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 15:47:59,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:59" (1/1) ... [2021-06-16 15:47:59,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:59" (1/1) ... [2021-06-16 15:47:59,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 15:47:59,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 15:47:59,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 15:47:59,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 15:47:59,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:59" (1/1) ... [2021-06-16 15:47:59,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:59" (1/1) ... [2021-06-16 15:47:59,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:59" (1/1) ... [2021-06-16 15:47:59,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:59" (1/1) ... [2021-06-16 15:47:59,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:59" (1/1) ... [2021-06-16 15:47:59,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:59" (1/1) ... [2021-06-16 15:47:59,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:59" (1/1) ... [2021-06-16 15:47:59,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 15:47:59,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 15:47:59,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 15:47:59,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 15:47:59,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 15:47:59,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-16 15:47:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-16 15:47:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-16 15:47:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-16 15:47:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-16 15:47:59,245 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-16 15:47:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-16 15:47:59,245 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-16 15:47:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-16 15:47:59,245 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-16 15:47:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-16 15:47:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-16 15:47:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 15:47:59,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 15:47:59,247 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 15:47:59,533 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 15:47:59,533 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-16 15:47:59,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 03:47:59 BoogieIcfgContainer [2021-06-16 15:47:59,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 15:47:59,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 15:47:59,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 15:47:59,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 15:47:59,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.06 03:47:58" (1/3) ... [2021-06-16 15:47:59,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a5b9df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 03:47:59, skipping insertion in model container [2021-06-16 15:47:59,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 03:47:59" (2/3) ... [2021-06-16 15:47:59,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a5b9df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 03:47:59, skipping insertion in model container [2021-06-16 15:47:59,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 03:47:59" (3/3) ... [2021-06-16 15:47:59,542 INFO L111 eAbstractionObserver]: Analyzing ICFG safe018_pso.opt.i [2021-06-16 15:47:59,546 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 15:47:59,546 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 15:47:59,546 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 15:47:59,547 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 15:47:59,572 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,572 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,573 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,573 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,573 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,573 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,573 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,573 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,574 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,574 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,574 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,574 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,574 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,574 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,575 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,575 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,577 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,578 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,578 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,578 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,578 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,579 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,579 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,582 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,582 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,582 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,582 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,583 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,583 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,583 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,583 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,584 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,584 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,584 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,585 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,587 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,587 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,587 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,587 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,591 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,591 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,591 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,591 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,593 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,593 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,593 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,593 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 15:47:59,596 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-16 15:47:59,611 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-16 15:47:59,626 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 15:47:59,626 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 15:47:59,626 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 15:47:59,626 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 15:47:59,626 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 15:47:59,626 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 15:47:59,627 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 15:47:59,627 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 15:48:00,215 INFO L276 IsEmpty]: Start isEmpty. Operand has 8009 states, 6869 states have (on average 2.2025040034939583) internal successors, (15129), 8008 states have internal predecessors, (15129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:00,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-16 15:48:00,234 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:00,235 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:48:00,236 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:00,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:00,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1924556435, now seen corresponding path program 1 times [2021-06-16 15:48:00,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:00,249 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211848128] [2021-06-16 15:48:00,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:00,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:00,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:00,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:00,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:00,484 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:48:00,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:48:00,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:00,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:00,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:00,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:00,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:00,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:00,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:48:00,554 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:00,554 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211848128] [2021-06-16 15:48:00,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211848128] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:00,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:00,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-16 15:48:00,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2842260] [2021-06-16 15:48:00,557 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-16 15:48:00,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:00,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-16 15:48:00,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-16 15:48:00,577 INFO L87 Difference]: Start difference. First operand has 8009 states, 6869 states have (on average 2.2025040034939583) internal successors, (15129), 8008 states have internal predecessors, (15129), 0 states have call successors, (0), 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 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:00,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:00,756 INFO L93 Difference]: Finished difference Result 10487 states and 20218 transitions. [2021-06-16 15:48:00,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 15:48:00,758 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2021-06-16 15:48:00,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:00,787 INFO L225 Difference]: With dead ends: 10487 [2021-06-16 15:48:00,787 INFO L226 Difference]: Without dead ends: 2183 [2021-06-16 15:48:00,788 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 126.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:48:00,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2183 states. [2021-06-16 15:48:00,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2183 to 2183. [2021-06-16 15:48:00,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2183 states, 2153 states have (on average 2.1755689735253134) internal successors, (4684), 2182 states have internal predecessors, (4684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:00,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 4684 transitions. [2021-06-16 15:48:00,925 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 4684 transitions. Word has length 49 [2021-06-16 15:48:00,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:00,925 INFO L482 AbstractCegarLoop]: Abstraction has 2183 states and 4684 transitions. [2021-06-16 15:48:00,925 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:00,925 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 4684 transitions. [2021-06-16 15:48:00,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-16 15:48:00,928 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:00,928 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:48:00,929 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 15:48:00,929 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:00,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:00,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1723098126, now seen corresponding path program 1 times [2021-06-16 15:48:00,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:00,932 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527438839] [2021-06-16 15:48:00,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:01,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:01,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:01,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:01,058 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:48:01,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:48:01,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:01,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:01,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:01,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:48:01,097 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:01,097 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527438839] [2021-06-16 15:48:01,097 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527438839] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:01,097 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:01,097 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:48:01,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562186615] [2021-06-16 15:48:01,100 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:48:01,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:01,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:48:01,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:48:01,101 INFO L87 Difference]: Start difference. First operand 2183 states and 4684 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:01,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:01,250 INFO L93 Difference]: Finished difference Result 2603 states and 5636 transitions. [2021-06-16 15:48:01,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 15:48:01,250 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2021-06-16 15:48:01,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:01,254 INFO L225 Difference]: With dead ends: 2603 [2021-06-16 15:48:01,254 INFO L226 Difference]: Without dead ends: 978 [2021-06-16 15:48:01,255 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 114.8ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-16 15:48:01,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2021-06-16 15:48:01,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 978. [2021-06-16 15:48:01,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 948 states have (on average 2.190928270042194) internal successors, (2077), 977 states have internal predecessors, (2077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:01,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 2077 transitions. [2021-06-16 15:48:01,271 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 2077 transitions. Word has length 51 [2021-06-16 15:48:01,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:01,272 INFO L482 AbstractCegarLoop]: Abstraction has 978 states and 2077 transitions. [2021-06-16 15:48:01,272 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:01,272 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 2077 transitions. [2021-06-16 15:48:01,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-16 15:48:01,273 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:01,274 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:48:01,274 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 15:48:01,274 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:01,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:01,274 INFO L82 PathProgramCache]: Analyzing trace with hash -835563170, now seen corresponding path program 1 times [2021-06-16 15:48:01,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:01,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777625720] [2021-06-16 15:48:01,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:01,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:01,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:01,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:01,342 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:48:01,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:48:01,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:01,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:01,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:01,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:48:01,379 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:01,379 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777625720] [2021-06-16 15:48:01,379 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777625720] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:01,379 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:01,379 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:48:01,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866377058] [2021-06-16 15:48:01,380 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:48:01,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:01,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:48:01,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:48:01,381 INFO L87 Difference]: Start difference. First operand 978 states and 2077 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:01,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:01,529 INFO L93 Difference]: Finished difference Result 1366 states and 3044 transitions. [2021-06-16 15:48:01,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 15:48:01,530 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-16 15:48:01,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:01,533 INFO L225 Difference]: With dead ends: 1366 [2021-06-16 15:48:01,533 INFO L226 Difference]: Without dead ends: 666 [2021-06-16 15:48:01,533 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 127.1ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-16 15:48:01,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-06-16 15:48:01,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 666. [2021-06-16 15:48:01,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 646 states have (on average 2.2956656346749225) internal successors, (1483), 665 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:01,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 1483 transitions. [2021-06-16 15:48:01,564 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 1483 transitions. Word has length 54 [2021-06-16 15:48:01,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:01,565 INFO L482 AbstractCegarLoop]: Abstraction has 666 states and 1483 transitions. [2021-06-16 15:48:01,565 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:01,566 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 1483 transitions. [2021-06-16 15:48:01,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-16 15:48:01,567 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:01,567 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:48:01,567 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-16 15:48:01,567 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:01,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:01,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1239907807, now seen corresponding path program 1 times [2021-06-16 15:48:01,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:01,571 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034067517] [2021-06-16 15:48:01,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:01,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:01,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:01,652 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:48:01,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:48:01,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:48:01,678 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:48:01,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:01,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:01,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:48:01,686 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:01,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034067517] [2021-06-16 15:48:01,686 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034067517] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:01,686 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:01,687 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-16 15:48:01,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961043791] [2021-06-16 15:48:01,687 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-16 15:48:01,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:01,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-16 15:48:01,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-16 15:48:01,688 INFO L87 Difference]: Start difference. First operand 666 states and 1483 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:01,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:01,780 INFO L93 Difference]: Finished difference Result 848 states and 1866 transitions. [2021-06-16 15:48:01,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 15:48:01,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-06-16 15:48:01,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:01,784 INFO L225 Difference]: With dead ends: 848 [2021-06-16 15:48:01,784 INFO L226 Difference]: Without dead ends: 624 [2021-06-16 15:48:01,784 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 77.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:48:01,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2021-06-16 15:48:01,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 624. [2021-06-16 15:48:01,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 604 states have (on average 2.2864238410596025) internal successors, (1381), 623 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:01,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 1381 transitions. [2021-06-16 15:48:01,806 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 1381 transitions. Word has length 56 [2021-06-16 15:48:01,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:01,807 INFO L482 AbstractCegarLoop]: Abstraction has 624 states and 1381 transitions. [2021-06-16 15:48:01,807 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:01,807 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 1381 transitions. [2021-06-16 15:48:01,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-16 15:48:01,809 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:01,810 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:48:01,810 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-16 15:48:01,810 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:01,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:01,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1214659533, now seen corresponding path program 1 times [2021-06-16 15:48:01,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:01,810 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756766467] [2021-06-16 15:48:01,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:01,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:01,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:01,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:01,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:01,886 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:48:01,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:48:01,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:48:01,911 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:48:01,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:01,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:01,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:01,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:48:01,945 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:01,945 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756766467] [2021-06-16 15:48:01,945 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756766467] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:01,945 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:01,945 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:48:01,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263415037] [2021-06-16 15:48:01,946 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:48:01,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:01,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:48:01,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:48:01,947 INFO L87 Difference]: Start difference. First operand 624 states and 1381 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:02,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:02,051 INFO L93 Difference]: Finished difference Result 639 states and 1367 transitions. [2021-06-16 15:48:02,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 15:48:02,052 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-06-16 15:48:02,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:02,053 INFO L225 Difference]: With dead ends: 639 [2021-06-16 15:48:02,053 INFO L226 Difference]: Without dead ends: 437 [2021-06-16 15:48:02,054 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 94.7ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-16 15:48:02,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2021-06-16 15:48:02,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2021-06-16 15:48:02,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 419 states have (on average 2.195704057279236) internal successors, (920), 436 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:02,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 920 transitions. [2021-06-16 15:48:02,071 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 920 transitions. Word has length 57 [2021-06-16 15:48:02,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:02,071 INFO L482 AbstractCegarLoop]: Abstraction has 437 states and 920 transitions. [2021-06-16 15:48:02,071 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:02,071 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 920 transitions. [2021-06-16 15:48:02,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-16 15:48:02,072 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:02,072 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:48:02,072 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-16 15:48:02,072 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:02,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:02,073 INFO L82 PathProgramCache]: Analyzing trace with hash 379153333, now seen corresponding path program 1 times [2021-06-16 15:48:02,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:02,073 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139207438] [2021-06-16 15:48:02,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:02,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:02,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:02,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:02,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:02,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:02,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:02,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:02,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:02,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:02,117 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-16 15:48:02,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-16 15:48:02,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:02,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-16 15:48:02,141 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-16 15:48:02,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:02,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:02,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:02,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:48:02,150 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:02,150 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139207438] [2021-06-16 15:48:02,150 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139207438] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:02,151 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:02,151 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-16 15:48:02,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706692075] [2021-06-16 15:48:02,151 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-16 15:48:02,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:02,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-16 15:48:02,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-16 15:48:02,152 INFO L87 Difference]: Start difference. First operand 437 states and 920 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:02,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:02,276 INFO L93 Difference]: Finished difference Result 329 states and 630 transitions. [2021-06-16 15:48:02,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-16 15:48:02,276 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-06-16 15:48:02,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:02,278 INFO L225 Difference]: With dead ends: 329 [2021-06-16 15:48:02,278 INFO L226 Difference]: Without dead ends: 212 [2021-06-16 15:48:02,278 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 103.8ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-16 15:48:02,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-06-16 15:48:02,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2021-06-16 15:48:02,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 203 states have (on average 1.7635467980295567) internal successors, (358), 211 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:02,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 358 transitions. [2021-06-16 15:48:02,282 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 358 transitions. Word has length 58 [2021-06-16 15:48:02,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:02,282 INFO L482 AbstractCegarLoop]: Abstraction has 212 states and 358 transitions. [2021-06-16 15:48:02,282 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:02,282 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 358 transitions. [2021-06-16 15:48:02,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-16 15:48:02,283 INFO L464 BasicCegarLoop]: Found error trace [2021-06-16 15:48:02,283 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-16 15:48:02,283 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-16 15:48:02,283 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-16 15:48:02,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 15:48:02,283 INFO L82 PathProgramCache]: Analyzing trace with hash 571704182, now seen corresponding path program 1 times [2021-06-16 15:48:02,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 15:48:02,284 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569148786] [2021-06-16 15:48:02,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 15:48:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 15:48:02,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:02,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:02,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:02,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:02,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:02,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-16 15:48:02,350 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-16 15:48:02,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-16 15:48:02,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:02,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:02,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:02,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-16 15:48:02,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 15:48:02,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-16 15:48:02,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 15:48:02,381 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 15:48:02,381 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569148786] [2021-06-16 15:48:02,381 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569148786] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 15:48:02,381 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 15:48:02,381 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-16 15:48:02,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886242271] [2021-06-16 15:48:02,383 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-16 15:48:02,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 15:48:02,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-16 15:48:02,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-16 15:48:02,383 INFO L87 Difference]: Start difference. First operand 212 states and 358 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) [2021-06-16 15:48:02,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-16 15:48:02,438 INFO L93 Difference]: Finished difference Result 176 states and 298 transitions. [2021-06-16 15:48:02,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 15:48:02,438 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 [2021-06-16 15:48:02,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-16 15:48:02,438 INFO L225 Difference]: With dead ends: 176 [2021-06-16 15:48:02,438 INFO L226 Difference]: Without dead ends: 0 [2021-06-16 15:48:02,440 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 70.2ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-16 15:48:02,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-16 15:48:02,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-16 15:48:02,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 15:48:02,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-16 15:48:02,441 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2021-06-16 15:48:02,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-16 15:48:02,441 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-16 15:48:02,441 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) [2021-06-16 15:48:02,441 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-16 15:48:02,441 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-16 15:48:02,442 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-16 15:48:02,443 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-16 15:48:02,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.06 03:48:02 BasicIcfg [2021-06-16 15:48:02,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-16 15:48:02,445 INFO L168 Benchmark]: Toolchain (without parser) took 3666.66 ms. Allocated memory was 176.2 MB in the beginning and 374.3 MB in the end (delta: 198.2 MB). Free memory was 138.2 MB in the beginning and 230.0 MB in the end (delta: -91.8 MB). Peak memory consumption was 107.1 MB. Max. memory is 8.0 GB. [2021-06-16 15:48:02,447 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 176.2 MB. Free memory is still 156.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 15:48:02,447 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.32 ms. Allocated memory is still 176.2 MB. Free memory was 138.0 MB in the beginning and 138.2 MB in the end (delta: -219.8 kB). Peak memory consumption was 16.4 MB. Max. memory is 8.0 GB. [2021-06-16 15:48:02,448 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.00 ms. Allocated memory is still 176.2 MB. Free memory was 138.2 MB in the beginning and 136.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-16 15:48:02,449 INFO L168 Benchmark]: Boogie Preprocessor took 13.79 ms. Allocated memory is still 176.2 MB. Free memory was 136.1 MB in the beginning and 134.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-16 15:48:02,449 INFO L168 Benchmark]: RCFGBuilder took 363.19 ms. Allocated memory is still 176.2 MB. Free memory was 134.6 MB in the beginning and 111.5 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-06-16 15:48:02,449 INFO L168 Benchmark]: TraceAbstraction took 2907.59 ms. Allocated memory was 176.2 MB in the beginning and 374.3 MB in the end (delta: 198.2 MB). Free memory was 111.0 MB in the beginning and 230.0 MB in the end (delta: -119.0 MB). Peak memory consumption was 79.1 MB. Max. memory is 8.0 GB. [2021-06-16 15:48:02,453 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 176.2 MB. Free memory is still 156.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 350.32 ms. Allocated memory is still 176.2 MB. Free memory was 138.0 MB in the beginning and 138.2 MB in the end (delta: -219.8 kB). Peak memory consumption was 16.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 26.00 ms. Allocated memory is still 176.2 MB. Free memory was 138.2 MB in the beginning and 136.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.79 ms. Allocated memory is still 176.2 MB. Free memory was 136.1 MB in the beginning and 134.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 363.19 ms. Allocated memory is still 176.2 MB. Free memory was 134.6 MB in the beginning and 111.5 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2907.59 ms. Allocated memory was 176.2 MB in the beginning and 374.3 MB in the end (delta: 198.2 MB). Free memory was 111.0 MB in the beginning and 230.0 MB in the end (delta: -119.0 MB). Peak memory consumption was 79.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 28140, positive: 27139, positive conditional: 27139, positive unconditional: 0, negative: 1001, negative conditional: 1001, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 27747, positive: 27139, positive conditional: 0, positive unconditional: 27139, negative: 608, negative conditional: 0, negative unconditional: 608, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 920, positive: 906, positive conditional: 0, positive unconditional: 906, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 920, positive: 902, positive conditional: 0, positive unconditional: 902, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 50, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 27747, positive: 26233, positive conditional: 0, positive unconditional: 26233, negative: 594, negative conditional: 0, negative unconditional: 594, unknown: 920, unknown conditional: 0, unknown unconditional: 920] , Statistics on independence cache: Total cache size (in pairs): 920, Positive cache size: 906, Positive conditional cache size: 0, Positive unconditional cache size: 906, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Independence queries for same thread: 393 - 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 7 procedures, 105 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2817.4ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 47.9ms, AutomataDifference: 924.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 568.6ms, PartialOrderReductionTime: 548.3ms, HoareTripleCheckerStatistics: 598 SDtfs, 861 SDslu, 1954 SDs, 0 SdLazy, 279 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 173.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 715.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8009occurred in iteration=0, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 216.2ms AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.0ms SsaConstructionTime, 185.1ms SatisfiabilityAnalysisTime, 690.0ms InterpolantComputationTime, 385 NumberOfCodeBlocks, 385 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 378 ConstructedInterpolants, 0 QuantifiedInterpolants, 1054 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...