/usr/bin/java -Xmx16000000000 -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-POR-Persistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-divine/condvar.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98707888a4ba860d5b57d27ee0e051c5b948cbbf-9870788 [2021-06-02 04:50:48,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-02 04:50:48,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-02 04:50:48,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-02 04:50:48,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-02 04:50:48,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-02 04:50:48,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-02 04:50:48,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-02 04:50:48,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-02 04:50:48,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-02 04:50:48,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-02 04:50:48,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-02 04:50:48,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-02 04:50:48,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-02 04:50:48,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-02 04:50:48,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-02 04:50:48,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-02 04:50:48,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-02 04:50:48,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-02 04:50:48,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-02 04:50:48,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-02 04:50:48,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-02 04:50:48,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-02 04:50:48,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-02 04:50:48,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-02 04:50:48,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-02 04:50:48,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-02 04:50:48,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-02 04:50:48,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-02 04:50:48,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-02 04:50:48,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-02 04:50:48,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-02 04:50:48,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-02 04:50:48,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-02 04:50:48,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-02 04:50:48,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-02 04:50:48,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-02 04:50:48,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-02 04:50:48,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-02 04:50:48,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-02 04:50:48,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-02 04:50:48,251 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-POR-Persistent-NoLbe.epf [2021-06-02 04:50:48,284 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-02 04:50:48,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-02 04:50:48,285 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-02 04:50:48,285 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-02 04:50:48,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-02 04:50:48,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-02 04:50:48,288 INFO L138 SettingsManager]: * Use SBE=true [2021-06-02 04:50:48,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-02 04:50:48,288 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-02 04:50:48,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-02 04:50:48,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-02 04:50:48,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-02 04:50:48,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-02 04:50:48,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-02 04:50:48,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-02 04:50:48,290 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-02 04:50:48,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-02 04:50:48,290 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-02 04:50:48,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-02 04:50:48,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-02 04:50:48,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-02 04:50:48,291 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-02 04:50:48,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-02 04:50:48,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-02 04:50:48,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-02 04:50:48,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-02 04:50:48,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-02 04:50:48,292 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-02 04:50:48,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-02 04:50:48,292 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-02 04:50:48,292 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-02 04:50:48,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-02 04:50:48,293 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SETS [2021-06-02 04:50:48,293 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-02 04:50:48,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-02 04:50:48,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-02 04:50:48,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-02 04:50:48,623 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-02 04:50:48,624 INFO L275 PluginConnector]: CDTParser initialized [2021-06-02 04:50:48,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar.i [2021-06-02 04:50:48,700 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0654b39da/8d4f6a627732487cba0a76be2b53004c/FLAG69121d0ba [2021-06-02 04:50:49,207 INFO L306 CDTParser]: Found 1 translation units. [2021-06-02 04:50:49,208 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar.i [2021-06-02 04:50:49,219 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0654b39da/8d4f6a627732487cba0a76be2b53004c/FLAG69121d0ba [2021-06-02 04:50:49,553 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0654b39da/8d4f6a627732487cba0a76be2b53004c [2021-06-02 04:50:49,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-02 04:50:49,557 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-02 04:50:49,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-02 04:50:49,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-02 04:50:49,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-02 04:50:49,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.06 04:50:49" (1/1) ... [2021-06-02 04:50:49,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e2199ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 04:50:49, skipping insertion in model container [2021-06-02 04:50:49,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.06 04:50:49" (1/1) ... [2021-06-02 04:50:49,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-02 04:50:49,618 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-02 04:50:49,722 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-02 04:50:49,909 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-divine/condvar.i[30458,30471] [2021-06-02 04:50:49,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-02 04:50:49,934 INFO L203 MainTranslator]: Completed pre-run [2021-06-02 04:50:49,949 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-02 04:50:49,975 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-divine/condvar.i[30458,30471] [2021-06-02 04:50:49,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-02 04:50:50,059 INFO L208 MainTranslator]: Completed translation [2021-06-02 04:50:50,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 04:50:50 WrapperNode [2021-06-02 04:50:50,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-02 04:50:50,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-02 04:50:50,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-02 04:50:50,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-02 04:50:50,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 04:50:50" (1/1) ... [2021-06-02 04:50:50,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 04:50:50" (1/1) ... [2021-06-02 04:50:50,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-02 04:50:50,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-02 04:50:50,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-02 04:50:50,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-02 04:50:50,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 04:50:50" (1/1) ... [2021-06-02 04:50:50,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 04:50:50" (1/1) ... [2021-06-02 04:50:50,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 04:50:50" (1/1) ... [2021-06-02 04:50:50,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 04:50:50" (1/1) ... [2021-06-02 04:50:50,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 04:50:50" (1/1) ... [2021-06-02 04:50:50,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 04:50:50" (1/1) ... [2021-06-02 04:50:50,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 04:50:50" (1/1) ... [2021-06-02 04:50:50,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-02 04:50:50,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-02 04:50:50,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-02 04:50:50,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-02 04:50:50,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 04:50:50" (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 [2021-06-02 04:50:50,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-02 04:50:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-02 04:50:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-02 04:50:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-02 04:50:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-02 04:50:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-02 04:50:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-06-02 04:50:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-06-02 04:50:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-02 04:50:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-02 04:50:50,247 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-02 04:50:50,533 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-02 04:50:50,533 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-06-02 04:50:50,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.06 04:50:50 BoogieIcfgContainer [2021-06-02 04:50:50,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-02 04:50:50,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-02 04:50:50,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-02 04:50:50,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-02 04:50:50,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.06 04:50:49" (1/3) ... [2021-06-02 04:50:50,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43773c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.06 04:50:50, skipping insertion in model container [2021-06-02 04:50:50,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.06 04:50:50" (2/3) ... [2021-06-02 04:50:50,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43773c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.06 04:50:50, skipping insertion in model container [2021-06-02 04:50:50,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.06 04:50:50" (3/3) ... [2021-06-02 04:50:50,541 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar.i [2021-06-02 04:50:50,546 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-02 04:50:50,546 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-02 04:50:50,546 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-02 04:50:50,547 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-02 04:50:50,567 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,567 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,567 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,567 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,568 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,568 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,568 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,568 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,568 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,569 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,569 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,569 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,569 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,570 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,570 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,570 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,570 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,570 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,571 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,571 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,572 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,573 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,573 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,573 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,573 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,573 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 04:50:50,579 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-02 04:50:50,598 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-02 04:50:50,648 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-02 04:50:50,648 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-02 04:50:50,648 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-02 04:50:50,648 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-02 04:50:50,648 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-02 04:50:50,648 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-02 04:50:50,648 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-02 04:50:50,649 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == threadThread1of1ForFork0======== [2021-06-02 04:50:50,757 INFO L430 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 04:50:50,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 04:50:50,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1222647952, now seen corresponding path program 1 times [2021-06-02 04:50:50,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 04:50:50,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683217084] [2021-06-02 04:50:50,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 04:50:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 04:50:50,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 04:50:50,925 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 04:50:50,925 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683217084] [2021-06-02 04:50:50,926 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683217084] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 04:50:50,926 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-02 04:50:50,926 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-02 04:50:50,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598478547] [2021-06-02 04:50:50,931 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-02 04:50:50,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 04:50:50,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-02 04:50:50,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-02 04:50:50,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:50,943 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 04:50:50,945 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 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) [2021-06-02 04:50:50,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:50,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:50,960 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-02 04:50:50,960 INFO L430 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 04:50:50,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 04:50:50,961 INFO L82 PathProgramCache]: Analyzing trace with hash -584805550, now seen corresponding path program 1 times [2021-06-02 04:50:50,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 04:50:50,962 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397635957] [2021-06-02 04:50:50,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 04:50:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 04:50:51,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 04:50:51,051 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 04:50:51,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397635957] [2021-06-02 04:50:51,051 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397635957] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 04:50:51,051 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-02 04:50:51,051 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-02 04:50:51,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599469301] [2021-06-02 04:50:51,053 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-02 04:50:51,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 04:50:51,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-02 04:50:51,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-02 04:50:51,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:51,054 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 04:50:51,054 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 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) [2021-06-02 04:50:51,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:51,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:51,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:51,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 04:50:51,140 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-02 04:50:51,141 INFO L430 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 04:50:51,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 04:50:51,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1723050496, now seen corresponding path program 1 times [2021-06-02 04:50:51,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 04:50:51,143 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917320716] [2021-06-02 04:50:51,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 04:50:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 04:50:51,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 04:50:51,291 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 04:50:51,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917320716] [2021-06-02 04:50:51,292 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917320716] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 04:50:51,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128867566] [2021-06-02 04:50:51,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 04:50:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 04:50:51,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-02 04:50:51,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 04:50:51,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 04:50:51,596 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128867566] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 04:50:51,596 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 04:50:51,597 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-02 04:50:51,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076281227] [2021-06-02 04:50:51,597 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-02 04:50:51,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 04:50:51,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-02 04:50:51,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-02 04:50:51,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:51,599 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 04:50:51,599 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 04:50:51,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:51,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 04:50:51,599 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:51,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:51,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 04:50:51,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 04:50:51,865 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 04:50:51,865 INFO L430 AbstractCegarLoop]: === Iteration 4 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 04:50:51,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 04:50:51,866 INFO L82 PathProgramCache]: Analyzing trace with hash 839749650, now seen corresponding path program 2 times [2021-06-02 04:50:51,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 04:50:51,866 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624719465] [2021-06-02 04:50:51,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 04:50:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 04:50:51,958 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 04:50:51,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 04:50:51,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624719465] [2021-06-02 04:50:51,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624719465] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 04:50:51,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91699521] [2021-06-02 04:50:51,959 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 04:50:52,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-02 04:50:52,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 04:50:52,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-02 04:50:52,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 04:50:52,226 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 04:50:52,227 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91699521] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 04:50:52,227 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 04:50:52,227 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-02 04:50:52,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17941081] [2021-06-02 04:50:52,229 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-02 04:50:52,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 04:50:52,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-02 04:50:52,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-06-02 04:50:52,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:52,232 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 04:50:52,233 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 04:50:52,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:52,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 04:50:52,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 04:50:52,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:52,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:52,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 04:50:52,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 04:50:52,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 04:50:52,556 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 04:50:52,557 INFO L430 AbstractCegarLoop]: === Iteration 5 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 04:50:52,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 04:50:52,558 INFO L82 PathProgramCache]: Analyzing trace with hash 799712576, now seen corresponding path program 3 times [2021-06-02 04:50:52,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 04:50:52,558 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816496144] [2021-06-02 04:50:52,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 04:50:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 04:50:52,656 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 04:50:52,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 04:50:52,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816496144] [2021-06-02 04:50:52,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816496144] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 04:50:52,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310301478] [2021-06-02 04:50:52,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 04:50:52,739 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-02 04:50:52,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 04:50:52,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-02 04:50:52,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 04:50:52,922 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-02 04:50:52,923 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310301478] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 04:50:52,923 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-02 04:50:52,923 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2021-06-02 04:50:52,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585751172] [2021-06-02 04:50:52,924 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-02 04:50:52,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 04:50:52,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-02 04:50:52,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-06-02 04:50:52,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:52,926 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 04:50:52,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 04:50:52,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:52,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 04:50:52,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 04:50:52,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 04:50:52,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:53,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:53,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 04:50:53,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 04:50:53,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 04:50:53,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-02 04:50:53,436 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 04:50:53,437 INFO L430 AbstractCegarLoop]: === Iteration 6 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 04:50:53,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 04:50:53,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1507846198, now seen corresponding path program 4 times [2021-06-02 04:50:53,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 04:50:53,438 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869234930] [2021-06-02 04:50:53,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 04:50:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 04:50:53,706 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 04:50:53,706 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 04:50:53,706 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869234930] [2021-06-02 04:50:53,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869234930] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 04:50:53,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037743073] [2021-06-02 04:50:53,707 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 04:50:53,785 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-02 04:50:53,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 04:50:53,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 18 conjunts are in the unsatisfiable core [2021-06-02 04:50:53,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 04:50:54,023 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 04:50:54,024 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037743073] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 04:50:54,024 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 04:50:54,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 21 [2021-06-02 04:50:54,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853447305] [2021-06-02 04:50:54,025 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-02 04:50:54,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 04:50:54,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-02 04:50:54,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2021-06-02 04:50:54,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:54,027 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 04:50:54,028 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 4.476190476190476) internal successors, (94), 21 states have internal predecessors, (94), 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) [2021-06-02 04:50:54,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:54,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 04:50:54,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 04:50:54,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 04:50:54,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-02 04:50:54,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:54,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:54,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 04:50:54,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 04:50:54,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 04:50:54,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-02 04:50:54,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-02 04:50:54,600 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-02 04:50:54,601 INFO L430 AbstractCegarLoop]: === Iteration 7 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 04:50:54,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 04:50:54,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1696923146, now seen corresponding path program 5 times [2021-06-02 04:50:54,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 04:50:54,602 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784135010] [2021-06-02 04:50:54,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 04:50:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 04:50:55,064 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 469 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 04:50:55,065 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 04:50:55,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784135010] [2021-06-02 04:50:55,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784135010] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 04:50:55,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447935442] [2021-06-02 04:50:55,065 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 04:50:55,154 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2021-06-02 04:50:55,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 04:50:55,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 30 conjunts are in the unsatisfiable core [2021-06-02 04:50:55,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 04:50:55,407 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 469 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 04:50:55,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447935442] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 04:50:55,408 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 04:50:55,408 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 33 [2021-06-02 04:50:55,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270913141] [2021-06-02 04:50:55,408 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-06-02 04:50:55,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 04:50:55,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-06-02 04:50:55,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2021-06-02 04:50:55,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:55,410 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 04:50:55,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 3.757575757575758) internal successors, (124), 33 states have internal predecessors, (124), 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) [2021-06-02 04:50:55,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:55,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 04:50:55,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 04:50:55,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 04:50:55,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-02 04:50:55,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-02 04:50:55,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:56,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:56,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 04:50:56,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 04:50:56,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 04:50:56,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-02 04:50:56,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-02 04:50:56,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-02 04:50:56,321 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 04:50:56,321 INFO L430 AbstractCegarLoop]: === Iteration 8 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-02 04:50:56,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 04:50:56,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1665496138, now seen corresponding path program 6 times [2021-06-02 04:50:56,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 04:50:56,322 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719836270] [2021-06-02 04:50:56,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 04:50:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 04:50:56,987 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 0 proven. 970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 04:50:56,987 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 04:50:56,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719836270] [2021-06-02 04:50:56,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719836270] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 04:50:56,988 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130777779] [2021-06-02 04:50:56,988 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 04:50:57,059 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-02 04:50:57,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 04:50:57,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 3 conjunts are in the unsatisfiable core [2021-06-02 04:50:57,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 04:50:57,268 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 772 trivial. 0 not checked. [2021-06-02 04:50:57,271 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130777779] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 04:50:57,271 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-02 04:50:57,272 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [43] total 44 [2021-06-02 04:50:57,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910467433] [2021-06-02 04:50:57,272 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-02 04:50:57,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 04:50:57,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-02 04:50:57,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=485, Invalid=1407, Unknown=0, NotChecked=0, Total=1892 [2021-06-02 04:50:57,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:57,273 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 04:50:57,274 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 04:50:57,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:57,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 04:50:57,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 04:50:57,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 04:50:57,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-02 04:50:57,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-06-02 04:50:57,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-06-02 04:50:57,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:57,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 04:50:57,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 04:50:57,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 04:50:57,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 04:50:57,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-02 04:50:57,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-02 04:50:57,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-02 04:50:57,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 04:50:57,884 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 04:50:57,888 INFO L301 ceAbstractionStarter]: Result for error location threadThread1of1ForFork0 was SAFE (1/3) [2021-06-02 04:50:57,889 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-02 04:50:57,908 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-02 04:50:57,908 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-02 04:50:57,908 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-02 04:50:57,908 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-02 04:50:57,909 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-02 04:50:57,909 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-02 04:50:57,909 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-02 04:50:57,909 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-02 04:50:57,996 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (2/3) [2021-06-02 04:50:57,996 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-02 04:50:58,007 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-02 04:50:58,008 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-02 04:50:58,008 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-02 04:50:58,008 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-02 04:50:58,008 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-02 04:50:58,008 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-02 04:50:58,008 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-02 04:50:58,008 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thread======== [2021-06-02 04:50:58,089 INFO L301 ceAbstractionStarter]: Result for error location thread was SAFE (3/3) [2021-06-02 04:50:58,090 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-02 04:50:58,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.06 04:50:58 BasicIcfg [2021-06-02 04:50:58,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-02 04:50:58,093 INFO L168 Benchmark]: Toolchain (without parser) took 8536.53 ms. Allocated memory was 350.2 MB in the beginning and 421.5 MB in the end (delta: 71.3 MB). Free memory was 312.3 MB in the beginning and 258.6 MB in the end (delta: 53.6 MB). Peak memory consumption was 125.7 MB. Max. memory is 16.0 GB. [2021-06-02 04:50:58,093 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 350.2 MB. Free memory was 330.4 MB in the beginning and 330.3 MB in the end (delta: 136.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-02 04:50:58,093 INFO L168 Benchmark]: CACSL2BoogieTranslator took 500.34 ms. Allocated memory is still 350.2 MB. Free memory was 312.1 MB in the beginning and 313.1 MB in the end (delta: -1.0 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-02 04:50:58,093 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.29 ms. Allocated memory is still 350.2 MB. Free memory was 313.1 MB in the beginning and 312.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-02 04:50:58,093 INFO L168 Benchmark]: Boogie Preprocessor took 33.14 ms. Allocated memory is still 350.2 MB. Free memory was 312.1 MB in the beginning and 310.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-02 04:50:58,093 INFO L168 Benchmark]: RCFGBuilder took 381.82 ms. Allocated memory is still 350.2 MB. Free memory was 310.0 MB in the beginning and 284.8 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-02 04:50:58,094 INFO L168 Benchmark]: TraceAbstraction took 7556.32 ms. Allocated memory was 350.2 MB in the beginning and 421.5 MB in the end (delta: 71.3 MB). Free memory was 284.8 MB in the beginning and 258.6 MB in the end (delta: 26.2 MB). Peak memory consumption was 99.6 MB. Max. memory is 16.0 GB. [2021-06-02 04:50:58,094 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 350.2 MB. Free memory was 330.4 MB in the beginning and 330.3 MB in the end (delta: 136.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 500.34 ms. Allocated memory is still 350.2 MB. Free memory was 312.1 MB in the beginning and 313.1 MB in the end (delta: -1.0 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 57.29 ms. Allocated memory is still 350.2 MB. Free memory was 313.1 MB in the beginning and 312.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 33.14 ms. Allocated memory is still 350.2 MB. Free memory was 312.1 MB in the beginning and 310.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 381.82 ms. Allocated memory is still 350.2 MB. Free memory was 310.0 MB in the beginning and 284.8 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7556.32 ms. Allocated memory was 350.2 MB in the beginning and 421.5 MB in the end (delta: 71.3 MB). Free memory was 284.8 MB in the beginning and 258.6 MB in the end (delta: 26.2 MB). Peak memory consumption was 99.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 3193, positive: 3146, positive conditional: 0, positive unconditional: 3146, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 867, positive: 856, positive conditional: 0, positive unconditional: 856, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 867, positive: 852, positive conditional: 0, positive unconditional: 852, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3193, positive: 2290, positive conditional: 0, positive unconditional: 2290, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 867, unknown conditional: 0, unknown unconditional: 867] , Statistics on independence cache: Total cache size (in pairs): 867, Positive cache size: 856, Positive conditional cache size: 0, Positive unconditional cache size: 856, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 867, Positive cache size: 856, Positive conditional cache size: 0, Positive unconditional cache size: 856, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 867, Positive cache size: 856, Positive conditional cache size: 0, Positive unconditional cache size: 856, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 867, Positive cache size: 856, Positive conditional cache size: 0, Positive unconditional cache size: 856, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 867, Positive cache size: 856, Positive conditional cache size: 0, Positive unconditional cache size: 856, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 867, Positive cache size: 856, Positive conditional cache size: 0, Positive unconditional cache size: 856, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 867, Positive cache size: 856, Positive conditional cache size: 0, Positive unconditional cache size: 856, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 867, Positive cache size: 856, Positive conditional cache size: 0, Positive unconditional cache size: 856, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Eliminated conditions: 0, SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 867, Positive cache size: 856, Positive conditional cache size: 0, Positive unconditional cache size: 856, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Eliminated conditions: 0 ], Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 560, Number of persistent set computation: 3988, Number of trivial persistent sets: 3987, Underlying independence relation: CachedIndependenceRelation.Independence Queries: [ total: 3193, positive: 3146, positive conditional: 0, positive unconditional: 3146, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 867, positive: 856, positive conditional: 0, positive unconditional: 856, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 867, positive: 852, positive conditional: 0, positive unconditional: 852, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3193, positive: 2290, positive conditional: 0, positive unconditional: 2290, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 867, unknown conditional: 0, unknown unconditional: 867] , Statistics on independence cache: Total cache size (in pairs): 867, Positive cache size: 856, Positive conditional cache size: 0, Positive unconditional cache size: 856, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 2729, positive: 2685, positive conditional: 0, positive unconditional: 2685, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 850, positive: 839, positive conditional: 0, positive unconditional: 839, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 850, positive: 835, positive conditional: 0, positive unconditional: 835, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 59, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2729, positive: 1846, positive conditional: 0, positive unconditional: 1846, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 850, unknown conditional: 0, unknown unconditional: 850] , Statistics on independence cache: Total cache size (in pairs): 850, Positive cache size: 839, Positive conditional cache size: 0, Positive unconditional cache size: 839, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 ], Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 79, Number of persistent set computation: 258, Number of trivial persistent sets: 210, Underlying independence relation: CachedIndependenceRelation.Independence Queries: [ total: 2729, positive: 2685, positive conditional: 0, positive unconditional: 2685, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 850, positive: 839, positive conditional: 0, positive unconditional: 839, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 850, positive: 835, positive conditional: 0, positive unconditional: 835, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 59, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2729, positive: 1846, positive conditional: 0, positive unconditional: 1846, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 850, unknown conditional: 0, unknown unconditional: 850] , Statistics on independence cache: Total cache size (in pairs): 850, Positive cache size: 839, Positive conditional cache size: 0, Positive unconditional cache size: 839, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 2729, positive: 2685, positive conditional: 0, positive unconditional: 2685, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 850, positive: 839, positive conditional: 0, positive unconditional: 839, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 850, positive: 835, positive conditional: 0, positive unconditional: 835, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 58, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2729, positive: 1846, positive conditional: 0, positive unconditional: 1846, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 850, unknown conditional: 0, unknown unconditional: 850] , Statistics on independence cache: Total cache size (in pairs): 850, Positive cache size: 839, Positive conditional cache size: 0, Positive unconditional cache size: 839, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 ], Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 75, Number of persistent set computation: 258, Number of trivial persistent sets: 210, Underlying independence relation: CachedIndependenceRelation.Independence Queries: [ total: 2729, positive: 2685, positive conditional: 0, positive unconditional: 2685, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 850, positive: 839, positive conditional: 0, positive unconditional: 839, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 850, positive: 835, positive conditional: 0, positive unconditional: 835, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 58, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2729, positive: 1846, positive conditional: 0, positive unconditional: 1846, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 850, unknown conditional: 0, unknown unconditional: 850] , Statistics on independence cache: Total cache size (in pairs): 850, Positive cache size: 839, Positive conditional cache size: 0, Positive unconditional cache size: 839, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - PositiveResult [Line: 706]: 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: threadThread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 83 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7275.7ms, OverallIterations: 8, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.8ms, PartialOrderReductionTime: 2078.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 109, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 97.1ms SsaConstructionTime, 388.3ms SatisfiabilityAnalysisTime, 2915.4ms InterpolantComputationTime, 1166 NumberOfCodeBlocks, 1088 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 1152 ConstructedInterpolants, 0 QuantifiedInterpolants, 2234 SizeOfPredicates, 55 NumberOfNonLiveVariables, 1028 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 988/3226 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 83 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 105.7ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.4ms, PartialOrderReductionTime: 84.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread with 1 thread instances CFG has 3 procedures, 83 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 92.8ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.1ms, PartialOrderReductionTime: 79.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: 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...