/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/safe007_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 22:09:52,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 22:09:52,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 22:09:52,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-09 22:09:52,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-09 22:09:52,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-09 22:09:52,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-09 22:09:52,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-09 22:09:52,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-09 22:09:52,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-09 22:09:52,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-09 22:09:52,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-09 22:09:52,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 22:09:52,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 22:09:52,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 22:09:52,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 22:09:52,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 22:09:52,969 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 22:09:52,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 22:09:52,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 22:09:52,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 22:09:52,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 22:09:52,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 22:09:52,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 22:09:52,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-09 22:09:52,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-09 22:09:52,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-09 22:09:52,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-09 22:09:52,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-09 22:09:52,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-09 22:09:52,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-09 22:09:52,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-09 22:09:52,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-09 22:09:52,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-09 22:09:52,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-09 22:09:52,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-09 22:09:52,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-09 22:09:52,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-09 22:09:52,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 22:09:52,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 22:09:52,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 22:09:52,989 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-07-09 22:09:53,015 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 22:09:53,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 22:09:53,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 22:09:53,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 22:09:53,017 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 22:09:53,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 22:09:53,017 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 22:09:53,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 22:09:53,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 22:09:53,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 22:09:53,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 22:09:53,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 22:09:53,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 22:09:53,019 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 22:09:53,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 22:09:53,019 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 22:09:53,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 22:09:53,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 22:09:53,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 22:09:53,019 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 22:09:53,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 22:09:53,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 22:09:53,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 22:09:53,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 22:09:53,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 22:09:53,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 22:09:53,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 22:09:53,028 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 22:09:53,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 22:09:53,028 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-09 22:09:53,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 22:09:53,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 22:09:53,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 22:09:53,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 22:09:53,253 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 22:09:53,254 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 22:09:53,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2021-07-09 22:09:53,306 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f0bc78c9/06fdba9606e04ad3ae7346d15d29d75d/FLAG2277595c0 [2021-07-09 22:09:53,730 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 22:09:53,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2021-07-09 22:09:53,749 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f0bc78c9/06fdba9606e04ad3ae7346d15d29d75d/FLAG2277595c0 [2021-07-09 22:09:53,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f0bc78c9/06fdba9606e04ad3ae7346d15d29d75d [2021-07-09 22:09:53,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 22:09:53,773 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 22:09:53,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 22:09:53,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 22:09:53,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 22:09:53,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 10:09:53" (1/1) ... [2021-07-09 22:09:53,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b55d758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:53, skipping insertion in model container [2021-07-09 22:09:53,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 10:09:53" (1/1) ... [2021-07-09 22:09:53,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 22:09:53,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 22:09:53,937 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/safe007_pso.opt.i[949,962] [2021-07-09 22:09:54,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 22:09:54,084 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 22:09:54,093 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/safe007_pso.opt.i[949,962] [2021-07-09 22:09:54,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 22:09:54,139 INFO L208 MainTranslator]: Completed translation [2021-07-09 22:09:54,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:54 WrapperNode [2021-07-09 22:09:54,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 22:09:54,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 22:09:54,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 22:09:54,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 22:09:54,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:54" (1/1) ... [2021-07-09 22:09:54,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:54" (1/1) ... [2021-07-09 22:09:54,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 22:09:54,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 22:09:54,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 22:09:54,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 22:09:54,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:54" (1/1) ... [2021-07-09 22:09:54,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:54" (1/1) ... [2021-07-09 22:09:54,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:54" (1/1) ... [2021-07-09 22:09:54,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:54" (1/1) ... [2021-07-09 22:09:54,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:54" (1/1) ... [2021-07-09 22:09:54,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:54" (1/1) ... [2021-07-09 22:09:54,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:54" (1/1) ... [2021-07-09 22:09:54,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 22:09:54,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 22:09:54,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 22:09:54,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 22:09:54,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 22:09:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 22:09:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 22:09:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 22:09:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 22:09:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-09 22:09:54,250 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-09 22:09:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-09 22:09:54,250 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-09 22:09:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-09 22:09:54,250 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-09 22:09:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 22:09:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 22:09:54,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 22:09:54,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 22:09:54,251 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 22:09:54,581 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 22:09:54,581 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-09 22:09:54,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 10:09:54 BoogieIcfgContainer [2021-07-09 22:09:54,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 22:09:54,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 22:09:54,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 22:09:54,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 22:09:54,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 10:09:53" (1/3) ... [2021-07-09 22:09:54,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623ba21c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 10:09:54, skipping insertion in model container [2021-07-09 22:09:54,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:09:54" (2/3) ... [2021-07-09 22:09:54,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623ba21c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 10:09:54, skipping insertion in model container [2021-07-09 22:09:54,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 10:09:54" (3/3) ... [2021-07-09 22:09:54,589 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_pso.opt.i [2021-07-09 22:09:54,593 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 22:09:54,593 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 22:09:54,593 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 22:09:54,593 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 22:09:54,618 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,619 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,619 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,619 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,619 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,619 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,619 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,620 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,623 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,623 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,623 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,623 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,624 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,624 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,624 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,624 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,625 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,625 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,625 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,625 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,628 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,629 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,629 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,629 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,629 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,629 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,630 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,630 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,630 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,630 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,630 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,630 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,630 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,630 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,631 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,631 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,632 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,632 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,632 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,633 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,636 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,636 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,636 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,636 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,637 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,637 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,638 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,638 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:09:54,641 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 22:09:54,656 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-09 22:09:54,679 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 22:09:54,679 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 22:09:54,680 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 22:09:54,680 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 22:09:54,680 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 22:09:54,680 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 22:09:54,680 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 22:09:54,680 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 22:09:55,034 INFO L276 IsEmpty]: Start isEmpty. Operand has 5560 states, 4769 states have (on average 1.9391906059970643) internal successors, (9248), 5559 states have internal predecessors, (9248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:09:55,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-07-09 22:09:55,055 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:09:55,056 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:09:55,056 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:09:55,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:09:55,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1408065288, now seen corresponding path program 1 times [2021-07-09 22:09:55,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:09:55,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936026769] [2021-07-09 22:09:55,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:09:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:09:55,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:55,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:09:55,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:55,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:09:55,381 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:09:55,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:09:55,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:55,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:55,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:55,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:55,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:55,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:09:55,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:09:55,458 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:09:55,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936026769] [2021-07-09 22:09:55,459 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936026769] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:09:55,459 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:09:55,459 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 22:09:55,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693731826] [2021-07-09 22:09:55,462 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 22:09:55,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:09:55,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 22:09:55,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 22:09:55,495 INFO L87 Difference]: Start difference. First operand has 5560 states, 4769 states have (on average 1.9391906059970643) internal successors, (9248), 5559 states have internal predecessors, (9248), 0 states have call successors, (0), 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 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:09:55,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:09:55,724 INFO L93 Difference]: Finished difference Result 6344 states and 10764 transitions. [2021-07-09 22:09:55,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 22:09:55,726 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2021-07-09 22:09:55,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:09:55,749 INFO L225 Difference]: With dead ends: 6344 [2021-07-09 22:09:55,749 INFO L226 Difference]: Without dead ends: 2489 [2021-07-09 22:09:55,750 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 174.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:09:55,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2489 states. [2021-07-09 22:09:55,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2489 to 2489. [2021-07-09 22:09:55,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2489 states, 2440 states have (on average 2.1471311475409838) internal successors, (5239), 2488 states have internal predecessors, (5239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:09:55,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 5239 transitions. [2021-07-09 22:09:55,851 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 5239 transitions. Word has length 50 [2021-07-09 22:09:55,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:09:55,852 INFO L482 AbstractCegarLoop]: Abstraction has 2489 states and 5239 transitions. [2021-07-09 22:09:55,852 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:09:55,853 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 5239 transitions. [2021-07-09 22:09:55,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-07-09 22:09:55,856 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:09:55,856 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:09:55,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 22:09:55,856 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:09:55,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:09:55,858 INFO L82 PathProgramCache]: Analyzing trace with hash 427289801, now seen corresponding path program 1 times [2021-07-09 22:09:55,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:09:55,859 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190347898] [2021-07-09 22:09:55,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:09:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:09:55,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:55,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:09:55,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:55,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:09:55,947 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:09:55,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:09:55,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:55,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:55,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:55,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:55,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:55,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:09:55,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:09:55,975 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:09:55,975 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190347898] [2021-07-09 22:09:55,975 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190347898] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:09:55,976 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:09:55,976 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 22:09:55,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229640962] [2021-07-09 22:09:55,976 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 22:09:55,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:09:55,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 22:09:55,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 22:09:55,977 INFO L87 Difference]: Start difference. First operand 2489 states and 5239 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:09:56,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:09:56,061 INFO L93 Difference]: Finished difference Result 2797 states and 6135 transitions. [2021-07-09 22:09:56,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 22:09:56,062 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2021-07-09 22:09:56,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:09:56,070 INFO L225 Difference]: With dead ends: 2797 [2021-07-09 22:09:56,071 INFO L226 Difference]: Without dead ends: 1981 [2021-07-09 22:09:56,071 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 71.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:09:56,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1981 states. [2021-07-09 22:09:56,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1981 to 1981. [2021-07-09 22:09:56,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1981 states, 1946 states have (on average 2.1551901336074) internal successors, (4194), 1980 states have internal predecessors, (4194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:09:56,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 4194 transitions. [2021-07-09 22:09:56,108 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 4194 transitions. Word has length 52 [2021-07-09 22:09:56,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:09:56,108 INFO L482 AbstractCegarLoop]: Abstraction has 1981 states and 4194 transitions. [2021-07-09 22:09:56,108 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:09:56,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 4194 transitions. [2021-07-09 22:09:56,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-07-09 22:09:56,111 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:09:56,111 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:09:56,111 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 22:09:56,111 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:09:56,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:09:56,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1933757834, now seen corresponding path program 1 times [2021-07-09 22:09:56,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:09:56,111 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409227249] [2021-07-09 22:09:56,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:09:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:09:56,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:56,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:09:56,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:56,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:09:56,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:56,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:09:56,188 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:09:56,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:09:56,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:56,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:56,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:56,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:56,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:56,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:09:56,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:09:56,218 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:09:56,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409227249] [2021-07-09 22:09:56,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409227249] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:09:56,218 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:09:56,218 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:09:56,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746053202] [2021-07-09 22:09:56,219 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:09:56,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:09:56,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:09:56,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:09:56,219 INFO L87 Difference]: Start difference. First operand 1981 states and 4194 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) [2021-07-09 22:09:56,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:09:56,322 INFO L93 Difference]: Finished difference Result 2701 states and 5880 transitions. [2021-07-09 22:09:56,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 22:09:56,322 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 [2021-07-09 22:09:56,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:09:56,327 INFO L225 Difference]: With dead ends: 2701 [2021-07-09 22:09:56,327 INFO L226 Difference]: Without dead ends: 1225 [2021-07-09 22:09:56,327 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 92.8ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 22:09:56,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2021-07-09 22:09:56,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1225. [2021-07-09 22:09:56,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 1205 states have (on average 2.2257261410788383) internal successors, (2682), 1224 states have internal predecessors, (2682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:09:56,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 2682 transitions. [2021-07-09 22:09:56,349 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 2682 transitions. Word has length 54 [2021-07-09 22:09:56,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:09:56,349 INFO L482 AbstractCegarLoop]: Abstraction has 1225 states and 2682 transitions. [2021-07-09 22:09:56,349 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) [2021-07-09 22:09:56,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 2682 transitions. [2021-07-09 22:09:56,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-07-09 22:09:56,351 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:09:56,351 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:09:56,351 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 22:09:56,351 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:09:56,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:09:56,352 INFO L82 PathProgramCache]: Analyzing trace with hash 109207283, now seen corresponding path program 1 times [2021-07-09 22:09:56,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:09:56,352 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083876185] [2021-07-09 22:09:56,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:09:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:09:56,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:56,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:09:56,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:56,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:09:56,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:56,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:09:56,394 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:09:56,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:09:56,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:56,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:56,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:56,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:56,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:56,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:09:56,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:09:56,422 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:09:56,422 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083876185] [2021-07-09 22:09:56,422 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083876185] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:09:56,422 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:09:56,422 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:09:56,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445741511] [2021-07-09 22:09:56,422 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:09:56,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:09:56,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:09:56,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:09:56,423 INFO L87 Difference]: Start difference. First operand 1225 states and 2682 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:09:56,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:09:56,518 INFO L93 Difference]: Finished difference Result 1673 states and 3842 transitions. [2021-07-09 22:09:56,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 22:09:56,518 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-07-09 22:09:56,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:09:56,522 INFO L225 Difference]: With dead ends: 1673 [2021-07-09 22:09:56,522 INFO L226 Difference]: Without dead ends: 929 [2021-07-09 22:09:56,522 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 89.8ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 22:09:56,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2021-07-09 22:09:56,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 929. [2021-07-09 22:09:56,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 913 states have (on average 2.2420591456736036) internal successors, (2047), 928 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:09:56,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 2047 transitions. [2021-07-09 22:09:56,538 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 2047 transitions. Word has length 57 [2021-07-09 22:09:56,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:09:56,538 INFO L482 AbstractCegarLoop]: Abstraction has 929 states and 2047 transitions. [2021-07-09 22:09:56,538 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:09:56,539 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 2047 transitions. [2021-07-09 22:09:56,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-07-09 22:09:56,540 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:09:56,541 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:09:56,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 22:09:56,541 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:09:56,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:09:56,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1014026607, now seen corresponding path program 1 times [2021-07-09 22:09:56,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:09:56,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473453396] [2021-07-09 22:09:56,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:09:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:09:56,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:56,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:09:56,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:56,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:09:56,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:56,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:09:56,636 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:09:56,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:09:56,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:56,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:56,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:56,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:09:56,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:09:56,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:09:56,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:09:56,671 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:09:56,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473453396] [2021-07-09 22:09:56,671 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473453396] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:09:56,671 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:09:56,671 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:09:56,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825298613] [2021-07-09 22:09:56,672 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:09:56,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:09:56,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:09:56,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:09:56,674 INFO L87 Difference]: Start difference. First operand 929 states and 2047 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:09:56,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:09:56,785 INFO L93 Difference]: Finished difference Result 801 states and 1729 transitions. [2021-07-09 22:09:56,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 22:09:56,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-07-09 22:09:56,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:09:56,786 INFO L225 Difference]: With dead ends: 801 [2021-07-09 22:09:56,786 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 22:09:56,787 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 95.4ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 22:09:56,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 22:09:56,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 22:09:56,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:09:56,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 22:09:56,787 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-07-09 22:09:56,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:09:56,787 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 22:09:56,788 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:09:56,788 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 22:09:56,788 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 22:09:56,788 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 22:09:56,789 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 22:09:56,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 10:09:56 BasicIcfg [2021-07-09 22:09:56,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 22:09:56,792 INFO L168 Benchmark]: Toolchain (without parser) took 3018.08 ms. Allocated memory was 215.0 MB in the beginning and 257.9 MB in the end (delta: 43.0 MB). Free memory was 177.7 MB in the beginning and 215.8 MB in the end (delta: -38.1 MB). Peak memory consumption was 5.9 MB. Max. memory is 8.0 GB. [2021-07-09 22:09:56,792 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 215.0 MB. Free memory is still 196.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 22:09:56,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.24 ms. Allocated memory is still 215.0 MB. Free memory was 177.7 MB in the beginning and 187.4 MB in the end (delta: -9.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-09 22:09:56,792 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.45 ms. Allocated memory is still 215.0 MB. Free memory was 187.4 MB in the beginning and 185.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 22:09:56,793 INFO L168 Benchmark]: Boogie Preprocessor took 14.77 ms. Allocated memory is still 215.0 MB. Free memory was 185.3 MB in the beginning and 184.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-09 22:09:56,793 INFO L168 Benchmark]: RCFGBuilder took 389.07 ms. Allocated memory is still 215.0 MB. Free memory was 184.3 MB in the beginning and 160.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-07-09 22:09:56,793 INFO L168 Benchmark]: TraceAbstraction took 2206.59 ms. Allocated memory was 215.0 MB in the beginning and 257.9 MB in the end (delta: 43.0 MB). Free memory was 160.2 MB in the beginning and 215.8 MB in the end (delta: -55.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 22:09:56,795 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 215.0 MB. Free memory is still 196.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 363.24 ms. Allocated memory is still 215.0 MB. Free memory was 177.7 MB in the beginning and 187.4 MB in the end (delta: -9.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 38.45 ms. Allocated memory is still 215.0 MB. Free memory was 187.4 MB in the beginning and 185.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.77 ms. Allocated memory is still 215.0 MB. Free memory was 185.3 MB in the beginning and 184.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 389.07 ms. Allocated memory is still 215.0 MB. Free memory was 184.3 MB in the beginning and 160.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2206.59 ms. Allocated memory was 215.0 MB in the beginning and 257.9 MB in the end (delta: 43.0 MB). Free memory was 160.2 MB in the beginning and 215.8 MB in the end (delta: -55.6 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 18126, positive: 17600, positive conditional: 17600, positive unconditional: 0, negative: 526, negative conditional: 526, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18050, positive: 17600, positive conditional: 0, positive unconditional: 17600, negative: 450, negative conditional: 0, negative unconditional: 450, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 668, positive: 654, positive conditional: 0, positive unconditional: 654, 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: 668, positive: 650, positive conditional: 0, positive unconditional: 650, 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: 37, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18050, positive: 16946, positive conditional: 0, positive unconditional: 16946, negative: 436, negative conditional: 0, negative unconditional: 436, unknown: 668, unknown conditional: 0, unknown unconditional: 668] , Statistics on independence cache: Total cache size (in pairs): 668, Positive cache size: 654, Positive conditional cache size: 0, Positive unconditional cache size: 654, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Independence queries for same thread: 76 - 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, 108 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2111.2ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 42.4ms, AutomataDifference: 704.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 342.0ms, PartialOrderReductionTime: 324.9ms, HoareTripleCheckerStatistics: 493 SDtfs, 583 SDslu, 1515 SDs, 0 SdLazy, 117 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 80.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 524.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5560occurred in iteration=0, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 165.1ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.3ms SsaConstructionTime, 148.7ms SatisfiabilityAnalysisTime, 558.7ms InterpolantComputationTime, 271 NumberOfCodeBlocks, 271 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 786 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...