/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:49:20,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:49:20,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:49:20,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:49:20,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:49:20,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:49:20,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:49:20,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:49:20,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:49:20,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:49:20,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:49:20,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:49:20,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:49:20,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:49:20,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:49:20,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:49:20,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:49:20,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:49:20,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:49:20,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:49:20,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:49:20,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:49:20,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:49:20,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:49:20,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 14:49:20,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 14:49:20,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 14:49:20,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 14:49:20,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 14:49:20,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 14:49:20,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 14:49:20,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 14:49:20,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 14:49:20,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:49:20,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:49:20,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:49:20,374 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-01-20 14:49:20,435 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:49:20,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:49:20,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:49:20,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:49:20,441 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:49:20,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:49:20,442 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:49:20,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:49:20,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:49:20,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:49:20,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:49:20,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:49:20,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:49:20,445 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:49:20,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:49:20,445 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:49:20,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:49:20,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:49:20,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:49:20,446 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:49:20,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:49:20,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:49:20,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:49:20,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:49:20,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:49:20,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:49:20,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:49:20,448 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:49:20,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:49:20,449 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:49:20,449 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:49:20,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:49:20,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:49:20,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:49:20,876 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:49:20,880 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:49:20,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i [2021-01-20 14:49:20,959 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a592d54b6/2d994c8d0e724e768c795123182c25e7/FLAGdd9cbe447 [2021-01-20 14:49:21,631 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:49:21,632 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i [2021-01-20 14:49:21,646 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a592d54b6/2d994c8d0e724e768c795123182c25e7/FLAGdd9cbe447 [2021-01-20 14:49:21,825 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a592d54b6/2d994c8d0e724e768c795123182c25e7 [2021-01-20 14:49:21,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:49:21,836 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:49:21,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:49:21,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:49:21,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:49:21,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:49:21" (1/1) ... [2021-01-20 14:49:21,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a01c414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:21, skipping insertion in model container [2021-01-20 14:49:21,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:49:21" (1/1) ... [2021-01-20 14:49:21,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:49:21,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:49:22,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:49:22,332 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:49:22,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:49:22,472 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:49:22,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:22 WrapperNode [2021-01-20 14:49:22,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:49:22,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:49:22,474 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:49:22,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:49:22,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:22" (1/1) ... [2021-01-20 14:49:22,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:22" (1/1) ... [2021-01-20 14:49:22,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:49:22,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:49:22,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:49:22,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:49:22,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:22" (1/1) ... [2021-01-20 14:49:22,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:22" (1/1) ... [2021-01-20 14:49:22,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:22" (1/1) ... [2021-01-20 14:49:22,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:22" (1/1) ... [2021-01-20 14:49:22,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:22" (1/1) ... [2021-01-20 14:49:22,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:22" (1/1) ... [2021-01-20 14:49:22,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:22" (1/1) ... [2021-01-20 14:49:22,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:49:22,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:49:22,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:49:22,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:49:22,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:22" (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 [2021-01-20 14:49:22,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:49:22,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:49:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:49:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:49:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:49:22,641 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:49:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:49:22,641 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:49:22,642 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 14:49:22,642 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 14:49:22,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:49:22,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:49:22,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:49:22,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:49:22,644 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 14:49:23,138 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:49:23,138 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:49:23,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:49:23 BoogieIcfgContainer [2021-01-20 14:49:23,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:49:23,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:49:23,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:49:23,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:49:23,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:49:21" (1/3) ... [2021-01-20 14:49:23,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4917d3b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:49:23, skipping insertion in model container [2021-01-20 14:49:23,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:49:22" (2/3) ... [2021-01-20 14:49:23,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4917d3b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:49:23, skipping insertion in model container [2021-01-20 14:49:23,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:49:23" (3/3) ... [2021-01-20 14:49:23,150 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_tso.oepc.i [2021-01-20 14:49:23,168 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:49:23,168 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:49:23,173 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:49:23,174 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:49:23,213 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,213 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,213 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,213 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,214 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,214 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,214 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,214 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,215 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,215 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,215 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,215 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,216 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,216 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,216 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,217 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,217 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,217 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,217 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,218 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,218 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,218 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,218 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,218 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,219 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,219 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,219 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,219 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,220 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,220 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,220 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,220 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,221 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,221 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,221 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,221 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,224 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,225 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,225 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,225 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,232 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,232 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,233 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,233 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,237 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,237 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,237 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,238 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:49:23,243 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:49:23,257 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 14:49:23,283 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:49:23,284 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:49:23,284 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:49:23,284 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:49:23,284 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:49:23,284 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:49:23,284 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:49:23,285 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:49:23,298 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 78 transitions, 171 flow [2021-01-20 14:49:24,148 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8448 states, 8446 states have (on average 3.5893914278948613) internal successors, (30316), 8447 states have internal predecessors, (30316), 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) [2021-01-20 14:49:24,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 8448 states, 8446 states have (on average 3.5893914278948613) internal successors, (30316), 8447 states have internal predecessors, (30316), 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) [2021-01-20 14:49:24,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-20 14:49:24,250 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:24,251 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:49:24,251 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:24,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:24,259 INFO L82 PathProgramCache]: Analyzing trace with hash 122866376, now seen corresponding path program 1 times [2021-01-20 14:49:24,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:24,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908207636] [2021-01-20 14:49:24,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:24,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:24,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908207636] [2021-01-20 14:49:24,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:24,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:49:24,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29723516] [2021-01-20 14:49:24,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:49:24,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:24,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:49:24,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:49:24,833 INFO L87 Difference]: Start difference. First operand has 8448 states, 8446 states have (on average 3.5893914278948613) internal successors, (30316), 8447 states have internal predecessors, (30316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-01-20 14:49:25,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:25,295 INFO L93 Difference]: Finished difference Result 10464 states and 36160 transitions. [2021-01-20 14:49:25,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:49:25,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-01-20 14:49:25,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:25,356 INFO L225 Difference]: With dead ends: 10464 [2021-01-20 14:49:25,357 INFO L226 Difference]: Without dead ends: 3954 [2021-01-20 14:49:25,358 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:49:25,359 INFO L78 Accepts]: Start accepts. Automaton has 3954 states. Word has length 42 [2021-01-20 14:49:25,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:25,361 INFO L481 AbstractCegarLoop]: Abstraction has 3954 states. [2021-01-20 14:49:25,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-01-20 14:49:25,361 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states. [2021-01-20 14:49:25,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-20 14:49:25,376 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:25,377 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:49:25,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:49:25,377 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:25,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:25,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1872350423, now seen corresponding path program 1 times [2021-01-20 14:49:25,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:25,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152029266] [2021-01-20 14:49:25,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:25,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:25,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152029266] [2021-01-20 14:49:25,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:25,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:49:25,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022864146] [2021-01-20 14:49:25,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:49:25,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:25,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:49:25,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:49:25,736 INFO L87 Difference]: Start difference. First operand 3954 states. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2021-01-20 14:49:25,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:25,999 INFO L93 Difference]: Finished difference Result 5214 states and 17478 transitions. [2021-01-20 14:49:26,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:49:26,000 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-01-20 14:49:26,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:26,026 INFO L225 Difference]: With dead ends: 5214 [2021-01-20 14:49:26,026 INFO L226 Difference]: Without dead ends: 2904 [2021-01-20 14:49:26,027 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:49:26,028 INFO L78 Accepts]: Start accepts. Automaton has 2904 states. Word has length 44 [2021-01-20 14:49:26,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:26,028 INFO L481 AbstractCegarLoop]: Abstraction has 2904 states. [2021-01-20 14:49:26,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2021-01-20 14:49:26,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2904 states. [2021-01-20 14:49:26,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-01-20 14:49:26,038 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:26,038 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:49:26,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:49:26,039 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:26,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:26,040 INFO L82 PathProgramCache]: Analyzing trace with hash 799772232, now seen corresponding path program 1 times [2021-01-20 14:49:26,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:26,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82980449] [2021-01-20 14:49:26,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:26,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:26,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82980449] [2021-01-20 14:49:26,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:26,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:49:26,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261346685] [2021-01-20 14:49:26,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:49:26,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:26,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:49:26,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:49:26,239 INFO L87 Difference]: Start difference. First operand 2904 states. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-01-20 14:49:26,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:26,475 INFO L93 Difference]: Finished difference Result 3576 states and 11571 transitions. [2021-01-20 14:49:26,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:49:26,476 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-01-20 14:49:26,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:26,503 INFO L225 Difference]: With dead ends: 3576 [2021-01-20 14:49:26,503 INFO L226 Difference]: Without dead ends: 2680 [2021-01-20 14:49:26,504 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:49:26,504 INFO L78 Accepts]: Start accepts. Automaton has 2680 states. Word has length 46 [2021-01-20 14:49:26,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:26,505 INFO L481 AbstractCegarLoop]: Abstraction has 2680 states. [2021-01-20 14:49:26,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-01-20 14:49:26,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2680 states. [2021-01-20 14:49:26,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 14:49:26,515 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:26,515 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:49:26,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:49:26,516 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:26,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:26,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1590494414, now seen corresponding path program 1 times [2021-01-20 14:49:26,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:26,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960535342] [2021-01-20 14:49:26,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:26,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:26,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960535342] [2021-01-20 14:49:26,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:26,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:49:26,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844034734] [2021-01-20 14:49:26,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:49:26,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:26,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:49:26,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:49:26,654 INFO L87 Difference]: Start difference. First operand 2680 states. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2021-01-20 14:49:26,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:26,856 INFO L93 Difference]: Finished difference Result 2692 states and 8433 transitions. [2021-01-20 14:49:26,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:49:26,857 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-01-20 14:49:26,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:26,875 INFO L225 Difference]: With dead ends: 2692 [2021-01-20 14:49:26,875 INFO L226 Difference]: Without dead ends: 1924 [2021-01-20 14:49:26,876 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-20 14:49:26,876 INFO L78 Accepts]: Start accepts. Automaton has 1924 states. Word has length 47 [2021-01-20 14:49:26,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:26,877 INFO L481 AbstractCegarLoop]: Abstraction has 1924 states. [2021-01-20 14:49:26,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2021-01-20 14:49:26,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1924 states. [2021-01-20 14:49:26,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-20 14:49:26,884 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:26,885 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:49:26,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:49:26,885 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:26,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:26,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1762956271, now seen corresponding path program 1 times [2021-01-20 14:49:26,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:26,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197512379] [2021-01-20 14:49:26,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:27,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:27,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197512379] [2021-01-20 14:49:27,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:27,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 14:49:27,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147932242] [2021-01-20 14:49:27,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 14:49:27,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:27,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 14:49:27,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 14:49:27,028 INFO L87 Difference]: Start difference. First operand 1924 states. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 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) [2021-01-20 14:49:27,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:27,286 INFO L93 Difference]: Finished difference Result 1447 states and 4276 transitions. [2021-01-20 14:49:27,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-20 14:49:27,287 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-01-20 14:49:27,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:27,295 INFO L225 Difference]: With dead ends: 1447 [2021-01-20 14:49:27,295 INFO L226 Difference]: Without dead ends: 1015 [2021-01-20 14:49:27,296 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-01-20 14:49:27,296 INFO L78 Accepts]: Start accepts. Automaton has 1015 states. Word has length 49 [2021-01-20 14:49:27,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:27,296 INFO L481 AbstractCegarLoop]: Abstraction has 1015 states. [2021-01-20 14:49:27,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 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) [2021-01-20 14:49:27,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states. [2021-01-20 14:49:27,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 14:49:27,301 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:27,301 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:49:27,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 14:49:27,301 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:27,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:27,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1204892077, now seen corresponding path program 1 times [2021-01-20 14:49:27,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:27,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316329225] [2021-01-20 14:49:27,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:27,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:27,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316329225] [2021-01-20 14:49:27,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:27,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:49:27,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081981092] [2021-01-20 14:49:27,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:49:27,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:27,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:49:27,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:49:27,410 INFO L87 Difference]: Start difference. First operand 1015 states. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-01-20 14:49:27,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:27,505 INFO L93 Difference]: Finished difference Result 1418 states and 4076 transitions. [2021-01-20 14:49:27,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:49:27,505 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-01-20 14:49:27,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:27,511 INFO L225 Difference]: With dead ends: 1418 [2021-01-20 14:49:27,511 INFO L226 Difference]: Without dead ends: 715 [2021-01-20 14:49:27,512 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:49:27,512 INFO L78 Accepts]: Start accepts. Automaton has 715 states. Word has length 53 [2021-01-20 14:49:27,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:27,512 INFO L481 AbstractCegarLoop]: Abstraction has 715 states. [2021-01-20 14:49:27,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-01-20 14:49:27,512 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states. [2021-01-20 14:49:27,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 14:49:27,515 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:49:27,515 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:49:27,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 14:49:27,516 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:49:27,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:49:27,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1710619263, now seen corresponding path program 2 times [2021-01-20 14:49:27,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:49:27,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865254227] [2021-01-20 14:49:27,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:49:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:49:27,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:49:27,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865254227] [2021-01-20 14:49:27,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:49:27,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:49:27,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615192061] [2021-01-20 14:49:27,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:49:27,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:49:27,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:49:27,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:49:27,628 INFO L87 Difference]: Start difference. First operand 715 states. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-01-20 14:49:27,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:49:27,713 INFO L93 Difference]: Finished difference Result 607 states and 1685 transitions. [2021-01-20 14:49:27,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:49:27,713 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-01-20 14:49:27,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:49:27,713 INFO L225 Difference]: With dead ends: 607 [2021-01-20 14:49:27,714 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:49:27,714 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:49:27,714 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 53 [2021-01-20 14:49:27,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:49:27,714 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:49:27,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-01-20 14:49:27,715 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:49:27,715 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:49:27,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 14:49:27,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:49:27 BasicIcfg [2021-01-20 14:49:27,720 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:49:27,723 INFO L168 Benchmark]: Toolchain (without parser) took 5887.21 ms. Allocated memory was 302.0 MB in the beginning and 599.8 MB in the end (delta: 297.8 MB). Free memory was 283.4 MB in the beginning and 422.1 MB in the end (delta: -138.7 MB). Peak memory consumption was 158.9 MB. Max. memory is 16.0 GB. [2021-01-20 14:49:27,723 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 271.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:49:27,724 INFO L168 Benchmark]: CACSL2BoogieTranslator took 635.97 ms. Allocated memory is still 302.0 MB. Free memory was 283.4 MB in the beginning and 263.1 MB in the end (delta: 20.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.0 GB. [2021-01-20 14:49:27,725 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.46 ms. Allocated memory is still 302.0 MB. Free memory was 263.1 MB in the beginning and 261.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:49:27,729 INFO L168 Benchmark]: Boogie Preprocessor took 31.99 ms. Allocated memory is still 302.0 MB. Free memory was 261.2 MB in the beginning and 259.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:49:27,730 INFO L168 Benchmark]: RCFGBuilder took 579.58 ms. Allocated memory is still 302.0 MB. Free memory was 259.8 MB in the beginning and 280.4 MB in the end (delta: -20.6 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.0 GB. [2021-01-20 14:49:27,731 INFO L168 Benchmark]: TraceAbstraction took 4578.02 ms. Allocated memory was 302.0 MB in the beginning and 599.8 MB in the end (delta: 297.8 MB). Free memory was 279.6 MB in the beginning and 422.1 MB in the end (delta: -142.5 MB). Peak memory consumption was 155.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:49:27,743 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 271.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 635.97 ms. Allocated memory is still 302.0 MB. Free memory was 283.4 MB in the beginning and 263.1 MB in the end (delta: 20.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 53.46 ms. Allocated memory is still 302.0 MB. Free memory was 263.1 MB in the beginning and 261.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 31.99 ms. Allocated memory is still 302.0 MB. Free memory was 261.2 MB in the beginning and 259.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 579.58 ms. Allocated memory is still 302.0 MB. Free memory was 259.8 MB in the beginning and 280.4 MB in the end (delta: -20.6 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4578.02 ms. Allocated memory was 302.0 MB in the beginning and 599.8 MB in the end (delta: 297.8 MB). Free memory was 279.6 MB in the beginning and 422.1 MB in the end (delta: -142.5 MB). Peak memory consumption was 155.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 635 SDtfs, 949 SDslu, 2154 SDs, 0 SdLazy, 273 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8448occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 334 NumberOfCodeBlocks, 334 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 327 ConstructedInterpolants, 0 QuantifiedInterpolants, 41295 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...