/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/safe000_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 18:02:46,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 18:02:46,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 18:02:46,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 18:02:46,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 18:02:46,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 18:02:46,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 18:02:46,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 18:02:46,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 18:02:46,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 18:02:46,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 18:02:46,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 18:02:46,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 18:02:46,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 18:02:46,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 18:02:46,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 18:02:46,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 18:02:46,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 18:02:46,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 18:02:46,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 18:02:46,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 18:02:46,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 18:02:46,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 18:02:46,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 18:02:46,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-11 18:02:46,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 18:02:46,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 18:02:46,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 18:02:46,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 18:02:46,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 18:02:46,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 18:02:46,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 18:02:46,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 18:02:46,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 18:02:46,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 18:02:46,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 18:02:46,634 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 [2020-11-11 18:02:46,663 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 18:02:46,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 18:02:46,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 18:02:46,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 18:02:46,667 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 18:02:46,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 18:02:46,668 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 18:02:46,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 18:02:46,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 18:02:46,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 18:02:46,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 18:02:46,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 18:02:46,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 18:02:46,670 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 18:02:46,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 18:02:46,671 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 18:02:46,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 18:02:46,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 18:02:46,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 18:02:46,672 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 18:02:46,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 18:02:46,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:02:46,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 18:02:46,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 18:02:46,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 18:02:46,674 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 18:02:46,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 18:02:46,675 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-11 18:02:46,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 18:02:46,675 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 18:02:47,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 18:02:47,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 18:02:47,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 18:02:47,154 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 18:02:47,157 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 18:02:47,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2020-11-11 18:02:47,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec08ba53/ddb1ed4ad38e4f049f15fe1fde76ee4b/FLAGa8ed6927d [2020-11-11 18:02:47,947 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 18:02:47,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2020-11-11 18:02:47,968 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec08ba53/ddb1ed4ad38e4f049f15fe1fde76ee4b/FLAGa8ed6927d [2020-11-11 18:02:48,212 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec08ba53/ddb1ed4ad38e4f049f15fe1fde76ee4b [2020-11-11 18:02:48,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 18:02:48,225 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 18:02:48,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 18:02:48,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 18:02:48,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 18:02:48,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:02:48" (1/1) ... [2020-11-11 18:02:48,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ca124df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:02:48, skipping insertion in model container [2020-11-11 18:02:48,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:02:48" (1/1) ... [2020-11-11 18:02:48,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 18:02:48,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 18:02:48,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:02:48,850 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 18:02:48,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:02:49,061 INFO L208 MainTranslator]: Completed translation [2020-11-11 18:02:49,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:02:49 WrapperNode [2020-11-11 18:02:49,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 18:02:49,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 18:02:49,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 18:02:49,065 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 18:02:49,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:02:49" (1/1) ... [2020-11-11 18:02:49,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:02:49" (1/1) ... [2020-11-11 18:02:49,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 18:02:49,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 18:02:49,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 18:02:49,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 18:02:49,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:02:49" (1/1) ... [2020-11-11 18:02:49,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:02:49" (1/1) ... [2020-11-11 18:02:49,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:02:49" (1/1) ... [2020-11-11 18:02:49,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:02:49" (1/1) ... [2020-11-11 18:02:49,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:02:49" (1/1) ... [2020-11-11 18:02:49,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:02:49" (1/1) ... [2020-11-11 18:02:49,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:02:49" (1/1) ... [2020-11-11 18:02:49,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 18:02:49,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 18:02:49,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 18:02:49,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 18:02:49,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:02:49" (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 [2020-11-11 18:02:49,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 18:02:49,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 18:02:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 18:02:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 18:02:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-11 18:02:49,276 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-11 18:02:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-11 18:02:49,277 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-11 18:02:49,277 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-11 18:02:49,277 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-11 18:02:49,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 18:02:49,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 18:02:49,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 18:02:49,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 18:02:49,279 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 18:02:49,659 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 18:02:49,659 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-11 18:02:49,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:02:49 BoogieIcfgContainer [2020-11-11 18:02:49,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 18:02:49,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 18:02:49,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 18:02:49,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 18:02:49,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:02:48" (1/3) ... [2020-11-11 18:02:49,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498c62d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:02:49, skipping insertion in model container [2020-11-11 18:02:49,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:02:49" (2/3) ... [2020-11-11 18:02:49,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498c62d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:02:49, skipping insertion in model container [2020-11-11 18:02:49,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:02:49" (3/3) ... [2020-11-11 18:02:49,670 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_tso.oepc.i [2020-11-11 18:02:49,686 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 18:02:49,686 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 18:02:49,689 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 18:02:49,690 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 18:02:49,733 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,734 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,734 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,734 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,734 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,735 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,735 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,735 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,736 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,737 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,737 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,737 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,738 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,738 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,738 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,738 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,739 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,739 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,739 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,739 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,740 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,740 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,740 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,741 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,743 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,744 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,744 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,744 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,745 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,745 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,746 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,749 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,750 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,750 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,750 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,751 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,758 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,758 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,759 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,759 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,771 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,771 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,771 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,771 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,774 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,775 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,775 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,775 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:02:49,778 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-11 18:02:49,790 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-11 18:02:49,813 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 18:02:49,813 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 18:02:49,813 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 18:02:49,814 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 18:02:49,814 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 18:02:49,814 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 18:02:49,814 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 18:02:49,814 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 18:02:49,826 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2020-11-11 18:02:50,666 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2020-11-11 18:02:50,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2020-11-11 18:02:50,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-11 18:02:50,770 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:02:50,772 INFO L494 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] [2020-11-11 18:02:50,772 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:02:50,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:02:50,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1557079206, now seen corresponding path program 1 times [2020-11-11 18:02:50,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:02:50,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919009717] [2020-11-11 18:02:50,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:02:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:02:51,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:02:51,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919009717] [2020-11-11 18:02:51,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:02:51,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:02:51,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66609732] [2020-11-11 18:02:51,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:02:51,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:02:51,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:02:51,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:02:51,421 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2020-11-11 18:02:51,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:02:51,875 INFO L93 Difference]: Finished difference Result 12200 states and 42464 transitions. [2020-11-11 18:02:51,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:02:51,877 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 [2020-11-11 18:02:51,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:02:51,953 INFO L225 Difference]: With dead ends: 12200 [2020-11-11 18:02:51,953 INFO L226 Difference]: Without dead ends: 4605 [2020-11-11 18:02:51,955 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:02:52,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2020-11-11 18:02:52,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 4605. [2020-11-11 18:02:52,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4605 states, 4604 states have (on average 3.415291051259774) internal successors, (15724), 4604 states have internal predecessors, (15724), 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) [2020-11-11 18:02:52,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4605 states to 4605 states and 15724 transitions. [2020-11-11 18:02:52,432 INFO L78 Accepts]: Start accepts. Automaton has 4605 states and 15724 transitions. Word has length 42 [2020-11-11 18:02:52,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:02:52,434 INFO L481 AbstractCegarLoop]: Abstraction has 4605 states and 15724 transitions. [2020-11-11 18:02:52,435 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) [2020-11-11 18:02:52,435 INFO L276 IsEmpty]: Start isEmpty. Operand 4605 states and 15724 transitions. [2020-11-11 18:02:52,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-11 18:02:52,447 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:02:52,447 INFO L494 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] [2020-11-11 18:02:52,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 18:02:52,448 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:02:52,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:02:52,449 INFO L82 PathProgramCache]: Analyzing trace with hash -807040891, now seen corresponding path program 1 times [2020-11-11 18:02:52,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:02:52,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613835168] [2020-11-11 18:02:52,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:02:52,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:02:52,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:02:52,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613835168] [2020-11-11 18:02:52,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:02:52,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:02:52,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348557195] [2020-11-11 18:02:52,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:02:52,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:02:52,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:02:52,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:02:52,724 INFO L87 Difference]: Start difference. First operand 4605 states and 15724 transitions. 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) [2020-11-11 18:02:53,186 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-11-11 18:02:53,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:02:53,277 INFO L93 Difference]: Finished difference Result 5725 states and 19295 transitions. [2020-11-11 18:02:53,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:02:53,278 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 [2020-11-11 18:02:53,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:02:53,306 INFO L225 Difference]: With dead ends: 5725 [2020-11-11 18:02:53,307 INFO L226 Difference]: Without dead ends: 3030 [2020-11-11 18:02:53,308 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-11 18:02:53,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2020-11-11 18:02:53,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3030. [2020-11-11 18:02:53,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 3.2756685374711125) internal successors, (9922), 3029 states have internal predecessors, (9922), 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) [2020-11-11 18:02:53,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 9922 transitions. [2020-11-11 18:02:53,432 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 9922 transitions. Word has length 44 [2020-11-11 18:02:53,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:02:53,434 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 9922 transitions. [2020-11-11 18:02:53,434 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) [2020-11-11 18:02:53,435 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 9922 transitions. [2020-11-11 18:02:53,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-11 18:02:53,447 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:02:53,447 INFO L494 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] [2020-11-11 18:02:53,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 18:02:53,447 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:02:53,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:02:53,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1134193934, now seen corresponding path program 1 times [2020-11-11 18:02:53,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:02:53,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44402273] [2020-11-11 18:02:53,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:02:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:02:53,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:02:53,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44402273] [2020-11-11 18:02:53,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:02:53,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:02:53,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111616232] [2020-11-11 18:02:53,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:02:53,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:02:53,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:02:53,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:02:53,754 INFO L87 Difference]: Start difference. First operand 3030 states and 9922 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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) [2020-11-11 18:02:54,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:02:54,035 INFO L93 Difference]: Finished difference Result 3366 states and 10910 transitions. [2020-11-11 18:02:54,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:02:54,036 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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 [2020-11-11 18:02:54,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:02:54,061 INFO L225 Difference]: With dead ends: 3366 [2020-11-11 18:02:54,061 INFO L226 Difference]: Without dead ends: 2806 [2020-11-11 18:02:54,062 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:02:54,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2020-11-11 18:02:54,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 2806. [2020-11-11 18:02:54,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 2805 states have (on average 3.2491978609625667) internal successors, (9114), 2805 states have internal predecessors, (9114), 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) [2020-11-11 18:02:54,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 9114 transitions. [2020-11-11 18:02:54,195 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 9114 transitions. Word has length 47 [2020-11-11 18:02:54,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:02:54,195 INFO L481 AbstractCegarLoop]: Abstraction has 2806 states and 9114 transitions. [2020-11-11 18:02:54,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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) [2020-11-11 18:02:54,196 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 9114 transitions. [2020-11-11 18:02:54,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-11 18:02:54,205 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:02:54,205 INFO L494 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] [2020-11-11 18:02:54,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 18:02:54,205 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:02:54,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:02:54,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1202989078, now seen corresponding path program 1 times [2020-11-11 18:02:54,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:02:54,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041632929] [2020-11-11 18:02:54,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:02:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:02:54,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:02:54,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041632929] [2020-11-11 18:02:54,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:02:54,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:02:54,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20238045] [2020-11-11 18:02:54,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:02:54,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:02:54,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:02:54,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:02:54,439 INFO L87 Difference]: Start difference. First operand 2806 states and 9114 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2020-11-11 18:02:54,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:02:54,765 INFO L93 Difference]: Finished difference Result 3790 states and 12172 transitions. [2020-11-11 18:02:54,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:02:54,766 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2020-11-11 18:02:54,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:02:54,780 INFO L225 Difference]: With dead ends: 3790 [2020-11-11 18:02:54,781 INFO L226 Difference]: Without dead ends: 1732 [2020-11-11 18:02:54,782 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-11 18:02:54,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2020-11-11 18:02:54,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1732. [2020-11-11 18:02:54,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1731 states have (on average 3.102253032928943) internal successors, (5370), 1731 states have internal predecessors, (5370), 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) [2020-11-11 18:02:54,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 5370 transitions. [2020-11-11 18:02:54,854 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 5370 transitions. Word has length 48 [2020-11-11 18:02:54,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:02:54,854 INFO L481 AbstractCegarLoop]: Abstraction has 1732 states and 5370 transitions. [2020-11-11 18:02:54,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2020-11-11 18:02:54,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 5370 transitions. [2020-11-11 18:02:54,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-11 18:02:54,860 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:02:54,861 INFO L494 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] [2020-11-11 18:02:54,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 18:02:54,861 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:02:54,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:02:54,863 INFO L82 PathProgramCache]: Analyzing trace with hash 710827437, now seen corresponding path program 1 times [2020-11-11 18:02:54,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:02:54,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370776689] [2020-11-11 18:02:54,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:02:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:02:55,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:02:55,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370776689] [2020-11-11 18:02:55,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:02:55,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:02:55,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502867729] [2020-11-11 18:02:55,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:02:55,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:02:55,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:02:55,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:02:55,084 INFO L87 Difference]: Start difference. First operand 1732 states and 5370 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:02:55,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:02:55,243 INFO L93 Difference]: Finished difference Result 1476 states and 4538 transitions. [2020-11-11 18:02:55,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 18:02:55,243 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2020-11-11 18:02:55,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:02:55,244 INFO L225 Difference]: With dead ends: 1476 [2020-11-11 18:02:55,244 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 18:02:55,244 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:02:55,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 18:02:55,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 18:02:55,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:02:55,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 18:02:55,246 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2020-11-11 18:02:55,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:02:55,246 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 18:02:55,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:02:55,247 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 18:02:55,247 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 18:02:55,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 18:02:55,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:02:55 BasicIcfg [2020-11-11 18:02:55,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 18:02:55,256 INFO L168 Benchmark]: Toolchain (without parser) took 7035.27 ms. Allocated memory was 302.0 MB in the beginning and 710.9 MB in the end (delta: 408.9 MB). Free memory was 276.7 MB in the beginning and 504.4 MB in the end (delta: -227.8 MB). Peak memory consumption was 183.2 MB. Max. memory is 16.0 GB. [2020-11-11 18:02:55,257 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 302.0 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:02:55,258 INFO L168 Benchmark]: CACSL2BoogieTranslator took 834.26 ms. Allocated memory is still 302.0 MB. Free memory was 276.0 MB in the beginning and 245.3 MB in the end (delta: 30.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2020-11-11 18:02:55,260 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.92 ms. Allocated memory is still 302.0 MB. Free memory was 245.1 MB in the beginning and 243.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:02:55,266 INFO L168 Benchmark]: Boogie Preprocessor took 42.04 ms. Allocated memory is still 302.0 MB. Free memory was 243.4 MB in the beginning and 284.8 MB in the end (delta: -41.5 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.0 GB. [2020-11-11 18:02:55,268 INFO L168 Benchmark]: RCFGBuilder took 465.45 ms. Allocated memory is still 302.0 MB. Free memory was 283.8 MB in the beginning and 261.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-11-11 18:02:55,268 INFO L168 Benchmark]: TraceAbstraction took 5589.65 ms. Allocated memory was 302.0 MB in the beginning and 710.9 MB in the end (delta: 408.9 MB). Free memory was 260.7 MB in the beginning and 504.4 MB in the end (delta: -243.7 MB). Peak memory consumption was 164.2 MB. Max. memory is 16.0 GB. [2020-11-11 18:02:55,281 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 302.0 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 834.26 ms. Allocated memory is still 302.0 MB. Free memory was 276.0 MB in the beginning and 245.3 MB in the end (delta: 30.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 87.92 ms. Allocated memory is still 302.0 MB. Free memory was 245.1 MB in the beginning and 243.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 42.04 ms. Allocated memory is still 302.0 MB. Free memory was 243.4 MB in the beginning and 284.8 MB in the end (delta: -41.5 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.0 GB. * RCFGBuilder took 465.45 ms. Allocated memory is still 302.0 MB. Free memory was 283.8 MB in the beginning and 261.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5589.65 ms. Allocated memory was 302.0 MB in the beginning and 710.9 MB in the end (delta: 408.9 MB). Free memory was 260.7 MB in the beginning and 504.4 MB in the end (delta: -243.7 MB). Peak memory consumption was 164.2 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 500 SDtfs, 655 SDslu, 1603 SDs, 0 SdLazy, 156 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9848occurred 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: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 227 ConstructedInterpolants, 0 QuantifiedInterpolants, 27837 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...