/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/safe032_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-6f57305 [2021-01-26 17:34:57,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-26 17:34:57,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-26 17:34:57,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-26 17:34:57,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-26 17:34:57,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-26 17:34:57,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-26 17:34:57,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-26 17:34:57,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-26 17:34:57,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-26 17:34:57,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-26 17:34:57,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-26 17:34:57,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-26 17:34:57,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-26 17:34:57,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-26 17:34:57,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-26 17:34:57,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-26 17:34:57,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-26 17:34:57,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-26 17:34:57,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-26 17:34:57,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-26 17:34:57,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-26 17:34:57,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-26 17:34:57,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-26 17:34:57,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-26 17:34:57,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-26 17:34:57,599 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-26 17:34:57,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-26 17:34:57,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-26 17:34:57,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-26 17:34:57,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-26 17:34:57,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-26 17:34:57,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-26 17:34:57,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-26 17:34:57,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-26 17:34:57,609 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-26 17:34:57,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-26 17:34:57,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-26 17:34:57,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-26 17:34:57,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-26 17:34:57,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-26 17:34:57,613 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 [2021-01-26 17:34:57,662 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-26 17:34:57,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-26 17:34:57,664 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-26 17:34:57,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-26 17:34:57,664 INFO L138 SettingsManager]: * Use SBE=true [2021-01-26 17:34:57,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-26 17:34:57,665 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-26 17:34:57,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-26 17:34:57,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-26 17:34:57,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-26 17:34:57,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-26 17:34:57,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-26 17:34:57,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-26 17:34:57,666 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-26 17:34:57,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-26 17:34:57,667 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-26 17:34:57,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-26 17:34:57,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-26 17:34:57,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-26 17:34:57,668 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-26 17:34:57,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-26 17:34:57,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:34:57,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-26 17:34:57,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-26 17:34:57,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-26 17:34:57,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-26 17:34:57,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-26 17:34:57,670 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-26 17:34:57,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-26 17:34:57,670 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-26 17:34:57,670 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-26 17:34:58,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-26 17:34:58,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-26 17:34:58,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-26 17:34:58,040 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-26 17:34:58,041 INFO L275 PluginConnector]: CDTParser initialized [2021-01-26 17:34:58,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2021-01-26 17:34:58,145 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bc5e2d10/d517ebb4e061494b9150f1b1ec0e4e55/FLAGe9eb942f2 [2021-01-26 17:34:58,904 INFO L306 CDTParser]: Found 1 translation units. [2021-01-26 17:34:58,905 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2021-01-26 17:34:58,923 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bc5e2d10/d517ebb4e061494b9150f1b1ec0e4e55/FLAGe9eb942f2 [2021-01-26 17:34:59,157 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bc5e2d10/d517ebb4e061494b9150f1b1ec0e4e55 [2021-01-26 17:34:59,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-26 17:34:59,175 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-26 17:34:59,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-26 17:34:59,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-26 17:34:59,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-26 17:34:59,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:34:59" (1/1) ... [2021-01-26 17:34:59,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c378f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:34:59, skipping insertion in model container [2021-01-26 17:34:59,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:34:59" (1/1) ... [2021-01-26 17:34:59,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-26 17:34:59,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-26 17:34:59,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:34:59,666 INFO L203 MainTranslator]: Completed pre-run [2021-01-26 17:34:59,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:34:59,900 INFO L208 MainTranslator]: Completed translation [2021-01-26 17:34:59,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:34:59 WrapperNode [2021-01-26 17:34:59,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-26 17:34:59,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-26 17:34:59,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-26 17:34:59,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-26 17:34:59,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:34:59" (1/1) ... [2021-01-26 17:34:59,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:34:59" (1/1) ... [2021-01-26 17:34:59,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-26 17:34:59,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-26 17:34:59,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-26 17:34:59,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-26 17:35:00,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:34:59" (1/1) ... [2021-01-26 17:35:00,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:34:59" (1/1) ... [2021-01-26 17:35:00,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:34:59" (1/1) ... [2021-01-26 17:35:00,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:34:59" (1/1) ... [2021-01-26 17:35:00,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:34:59" (1/1) ... [2021-01-26 17:35:00,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:34:59" (1/1) ... [2021-01-26 17:35:00,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:34:59" (1/1) ... [2021-01-26 17:35:00,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-26 17:35:00,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-26 17:35:00,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-26 17:35:00,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-26 17:35:00,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:34:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:35:00,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-26 17:35:00,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-26 17:35:00,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-26 17:35:00,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-26 17:35:00,147 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-26 17:35:00,148 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-26 17:35:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-26 17:35:00,149 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-26 17:35:00,149 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-26 17:35:00,150 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-26 17:35:00,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-26 17:35:00,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-26 17:35:00,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-26 17:35:00,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-26 17:35:00,152 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-26 17:35:00,586 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-26 17:35:00,586 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-26 17:35:00,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:35:00 BoogieIcfgContainer [2021-01-26 17:35:00,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-26 17:35:00,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-26 17:35:00,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-26 17:35:00,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-26 17:35:00,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 05:34:59" (1/3) ... [2021-01-26 17:35:00,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6014a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:35:00, skipping insertion in model container [2021-01-26 17:35:00,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:34:59" (2/3) ... [2021-01-26 17:35:00,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6014a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:35:00, skipping insertion in model container [2021-01-26 17:35:00,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:35:00" (3/3) ... [2021-01-26 17:35:00,596 INFO L111 eAbstractionObserver]: Analyzing ICFG safe032_tso.oepc.i [2021-01-26 17:35:00,611 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-26 17:35:00,612 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-26 17:35:00,615 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-26 17:35:00,616 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-26 17:35:00,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,645 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,645 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,646 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,646 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,648 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,648 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,649 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,649 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,651 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,651 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,652 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,652 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,656 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,656 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,656 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,657 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,663 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,663 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,669 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,670 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,670 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,670 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:35:00,672 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-26 17:35:00,685 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-26 17:35:00,708 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-26 17:35:00,709 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-26 17:35:00,709 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-26 17:35:00,709 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-26 17:35:00,709 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-26 17:35:00,709 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-26 17:35:00,710 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-26 17:35:00,710 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-26 17:35:00,721 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 78 transitions, 171 flow [2021-01-26 17:35:01,610 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9847 states, 9845 states have (on average 3.614931437277806) internal successors, (35589), 9846 states have internal predecessors, (35589), 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) [2021-01-26 17:35:01,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 9847 states, 9845 states have (on average 3.614931437277806) internal successors, (35589), 9846 states have internal predecessors, (35589), 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) [2021-01-26 17:35:01,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-01-26 17:35:01,701 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:35:01,702 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] [2021-01-26 17:35:01,703 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:35:01,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:35:01,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1725749416, now seen corresponding path program 1 times [2021-01-26 17:35:01,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:35:01,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960811890] [2021-01-26 17:35:01,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:35:01,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:35:02,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:35:02,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960811890] [2021-01-26 17:35:02,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:35:02,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:35:02,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736005875] [2021-01-26 17:35:02,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:35:02,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:35:02,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:35:02,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:35:02,280 INFO L87 Difference]: Start difference. First operand has 9847 states, 9845 states have (on average 3.614931437277806) internal successors, (35589), 9846 states have internal predecessors, (35589), 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 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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) [2021-01-26 17:35:02,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:35:02,726 INFO L93 Difference]: Finished difference Result 13459 states and 47001 transitions. [2021-01-26 17:35:02,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:35:02,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 41 [2021-01-26 17:35:02,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:35:02,855 INFO L225 Difference]: With dead ends: 13459 [2021-01-26 17:35:02,855 INFO L226 Difference]: Without dead ends: 5164 [2021-01-26 17:35:02,859 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:35:02,859 INFO L78 Accepts]: Start accepts. Automaton has 5164 states. Word has length 41 [2021-01-26 17:35:02,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:35:02,861 INFO L481 AbstractCegarLoop]: Abstraction has 5164 states. [2021-01-26 17:35:02,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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) [2021-01-26 17:35:02,862 INFO L276 IsEmpty]: Start isEmpty. Operand 5164 states. [2021-01-26 17:35:02,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-01-26 17:35:02,883 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:35:02,885 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] [2021-01-26 17:35:02,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-26 17:35:02,887 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:35:02,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:35:02,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1909768869, now seen corresponding path program 1 times [2021-01-26 17:35:02,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:35:02,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328423900] [2021-01-26 17:35:02,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:35:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:35:03,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:35:03,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328423900] [2021-01-26 17:35:03,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:35:03,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:35:03,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891186433] [2021-01-26 17:35:03,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:35:03,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:35:03,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:35:03,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:35:03,091 INFO L87 Difference]: Start difference. First operand 5164 states. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2021-01-26 17:35:03,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:35:03,385 INFO L93 Difference]: Finished difference Result 8909 states and 30137 transitions. [2021-01-26 17:35:03,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:35:03,386 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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 43 [2021-01-26 17:35:03,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:35:03,439 INFO L225 Difference]: With dead ends: 8909 [2021-01-26 17:35:03,439 INFO L226 Difference]: Without dead ends: 6004 [2021-01-26 17:35:03,440 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:35:03,440 INFO L78 Accepts]: Start accepts. Automaton has 6004 states. Word has length 43 [2021-01-26 17:35:03,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:35:03,441 INFO L481 AbstractCegarLoop]: Abstraction has 6004 states. [2021-01-26 17:35:03,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2021-01-26 17:35:03,441 INFO L276 IsEmpty]: Start isEmpty. Operand 6004 states. [2021-01-26 17:35:03,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-01-26 17:35:03,510 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:35:03,510 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] [2021-01-26 17:35:03,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-26 17:35:03,511 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:35:03,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:35:03,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1966288231, now seen corresponding path program 1 times [2021-01-26 17:35:03,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:35:03,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278893630] [2021-01-26 17:35:03,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:35:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:35:03,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:35:03,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278893630] [2021-01-26 17:35:03,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:35:03,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:35:03,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391920110] [2021-01-26 17:35:03,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:35:03,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:35:03,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:35:03,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:35:03,679 INFO L87 Difference]: Start difference. First operand 6004 states. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2021-01-26 17:35:03,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:35:03,877 INFO L93 Difference]: Finished difference Result 5444 states and 17955 transitions. [2021-01-26 17:35:03,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:35:03,878 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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 43 [2021-01-26 17:35:03,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:35:03,927 INFO L225 Difference]: With dead ends: 5444 [2021-01-26 17:35:03,927 INFO L226 Difference]: Without dead ends: 3274 [2021-01-26 17:35:03,929 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:35:03,929 INFO L78 Accepts]: Start accepts. Automaton has 3274 states. Word has length 43 [2021-01-26 17:35:03,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:35:03,929 INFO L481 AbstractCegarLoop]: Abstraction has 3274 states. [2021-01-26 17:35:03,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2021-01-26 17:35:03,930 INFO L276 IsEmpty]: Start isEmpty. Operand 3274 states. [2021-01-26 17:35:03,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-01-26 17:35:03,941 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:35:03,941 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] [2021-01-26 17:35:03,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-26 17:35:03,942 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:35:03,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:35:03,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1990619176, now seen corresponding path program 1 times [2021-01-26 17:35:03,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:35:03,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157872979] [2021-01-26 17:35:03,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:35:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:35:04,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:35:04,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157872979] [2021-01-26 17:35:04,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:35:04,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:35:04,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246668364] [2021-01-26 17:35:04,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:35:04,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:35:04,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:35:04,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:35:04,101 INFO L87 Difference]: Start difference. First operand 3274 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) [2021-01-26 17:35:04,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:35:04,303 INFO L93 Difference]: Finished difference Result 3770 states and 12367 transitions. [2021-01-26 17:35:04,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:35:04,304 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 [2021-01-26 17:35:04,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:35:04,317 INFO L225 Difference]: With dead ends: 3770 [2021-01-26 17:35:04,318 INFO L226 Difference]: Without dead ends: 3210 [2021-01-26 17:35:04,318 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:35:04,318 INFO L78 Accepts]: Start accepts. Automaton has 3210 states. Word has length 46 [2021-01-26 17:35:04,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:35:04,319 INFO L481 AbstractCegarLoop]: Abstraction has 3210 states. [2021-01-26 17:35:04,319 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) [2021-01-26 17:35:04,319 INFO L276 IsEmpty]: Start isEmpty. Operand 3210 states. [2021-01-26 17:35:04,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-26 17:35:04,329 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:35:04,330 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] [2021-01-26 17:35:04,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-26 17:35:04,330 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:35:04,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:35:04,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1452854260, now seen corresponding path program 1 times [2021-01-26 17:35:04,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:35:04,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149150317] [2021-01-26 17:35:04,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:35:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:35:04,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:35:04,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149150317] [2021-01-26 17:35:04,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:35:04,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:35:04,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028178302] [2021-01-26 17:35:04,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:35:04,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:35:04,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:35:04,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:35:04,449 INFO L87 Difference]: Start difference. First operand 3210 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) [2021-01-26 17:35:04,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:35:04,628 INFO L93 Difference]: Finished difference Result 4718 states and 15578 transitions. [2021-01-26 17:35:04,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-26 17:35:04,628 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 [2021-01-26 17:35:04,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:35:04,643 INFO L225 Difference]: With dead ends: 4718 [2021-01-26 17:35:04,643 INFO L226 Difference]: Without dead ends: 2965 [2021-01-26 17:35:04,643 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:35:04,644 INFO L78 Accepts]: Start accepts. Automaton has 2965 states. Word has length 47 [2021-01-26 17:35:04,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:35:04,644 INFO L481 AbstractCegarLoop]: Abstraction has 2965 states. [2021-01-26 17:35:04,644 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) [2021-01-26 17:35:04,644 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states. [2021-01-26 17:35:04,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-26 17:35:04,654 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:35:04,654 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] [2021-01-26 17:35:04,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-26 17:35:04,655 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:35:04,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:35:04,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1988271790, now seen corresponding path program 2 times [2021-01-26 17:35:04,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:35:04,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651117510] [2021-01-26 17:35:04,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:35:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:35:04,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:35:04,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651117510] [2021-01-26 17:35:04,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:35:04,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:35:04,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052160377] [2021-01-26 17:35:04,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:35:04,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:35:04,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:35:04,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:35:04,812 INFO L87 Difference]: Start difference. First operand 2965 states. 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) [2021-01-26 17:35:05,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:35:05,037 INFO L93 Difference]: Finished difference Result 4677 states and 15065 transitions. [2021-01-26 17:35:05,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:35:05,038 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 [2021-01-26 17:35:05,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:35:05,052 INFO L225 Difference]: With dead ends: 4677 [2021-01-26 17:35:05,052 INFO L226 Difference]: Without dead ends: 3349 [2021-01-26 17:35:05,052 INFO L769 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 [2021-01-26 17:35:05,053 INFO L78 Accepts]: Start accepts. Automaton has 3349 states. Word has length 47 [2021-01-26 17:35:05,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:35:05,053 INFO L481 AbstractCegarLoop]: Abstraction has 3349 states. [2021-01-26 17:35:05,053 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) [2021-01-26 17:35:05,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3349 states. [2021-01-26 17:35:05,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-26 17:35:05,063 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:35:05,063 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] [2021-01-26 17:35:05,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-26 17:35:05,063 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:35:05,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:35:05,064 INFO L82 PathProgramCache]: Analyzing trace with hash 659614723, now seen corresponding path program 1 times [2021-01-26 17:35:05,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:35:05,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848585342] [2021-01-26 17:35:05,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:35:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:35:05,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:35:05,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848585342] [2021-01-26 17:35:05,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:35:05,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:35:05,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374137017] [2021-01-26 17:35:05,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:35:05,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:35:05,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:35:05,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:35:05,200 INFO L87 Difference]: Start difference. First operand 3349 states. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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) [2021-01-26 17:35:05,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:35:05,394 INFO L93 Difference]: Finished difference Result 4005 states and 12589 transitions. [2021-01-26 17:35:05,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:35:05,394 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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 [2021-01-26 17:35:05,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:35:05,406 INFO L225 Difference]: With dead ends: 4005 [2021-01-26 17:35:05,406 INFO L226 Difference]: Without dead ends: 3053 [2021-01-26 17:35:05,407 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:35:05,407 INFO L78 Accepts]: Start accepts. Automaton has 3053 states. Word has length 48 [2021-01-26 17:35:05,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:35:05,407 INFO L481 AbstractCegarLoop]: Abstraction has 3053 states. [2021-01-26 17:35:05,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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) [2021-01-26 17:35:05,408 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states. [2021-01-26 17:35:05,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-26 17:35:05,416 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:35:05,416 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] [2021-01-26 17:35:05,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-26 17:35:05,417 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:35:05,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:35:05,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1879681106, now seen corresponding path program 1 times [2021-01-26 17:35:05,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:35:05,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790036010] [2021-01-26 17:35:05,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:35:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:35:05,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:35:05,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790036010] [2021-01-26 17:35:05,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:35:05,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:35:05,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396334582] [2021-01-26 17:35:05,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:35:05,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:35:05,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:35:05,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:35:05,554 INFO L87 Difference]: Start difference. First operand 3053 states. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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) [2021-01-26 17:35:05,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:35:05,766 INFO L93 Difference]: Finished difference Result 2915 states and 8883 transitions. [2021-01-26 17:35:05,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:35:05,767 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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 [2021-01-26 17:35:05,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:35:05,776 INFO L225 Difference]: With dead ends: 2915 [2021-01-26 17:35:05,776 INFO L226 Difference]: Without dead ends: 2123 [2021-01-26 17:35:05,777 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 [2021-01-26 17:35:05,777 INFO L78 Accepts]: Start accepts. Automaton has 2123 states. Word has length 49 [2021-01-26 17:35:05,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:35:05,779 INFO L481 AbstractCegarLoop]: Abstraction has 2123 states. [2021-01-26 17:35:05,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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) [2021-01-26 17:35:05,779 INFO L276 IsEmpty]: Start isEmpty. Operand 2123 states. [2021-01-26 17:35:05,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-26 17:35:05,787 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:35:05,787 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] [2021-01-26 17:35:05,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-26 17:35:05,788 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:35:05,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:35:05,789 INFO L82 PathProgramCache]: Analyzing trace with hash -793050483, now seen corresponding path program 1 times [2021-01-26 17:35:05,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:35:05,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390771209] [2021-01-26 17:35:05,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:35:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:35:05,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:35:05,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390771209] [2021-01-26 17:35:05,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:35:05,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-26 17:35:05,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393966729] [2021-01-26 17:35:05,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-26 17:35:05,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:35:05,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-26 17:35:05,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-26 17:35:05,997 INFO L87 Difference]: Start difference. First operand 2123 states. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:35:06,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:35:06,246 INFO L93 Difference]: Finished difference Result 1502 states and 4359 transitions. [2021-01-26 17:35:06,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-26 17:35:06,247 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-01-26 17:35:06,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:35:06,250 INFO L225 Difference]: With dead ends: 1502 [2021-01-26 17:35:06,250 INFO L226 Difference]: Without dead ends: 730 [2021-01-26 17:35:06,251 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 [2021-01-26 17:35:06,251 INFO L78 Accepts]: Start accepts. Automaton has 730 states. Word has length 51 [2021-01-26 17:35:06,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:35:06,252 INFO L481 AbstractCegarLoop]: Abstraction has 730 states. [2021-01-26 17:35:06,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:35:06,252 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states. [2021-01-26 17:35:06,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-26 17:35:06,254 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:35:06,255 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] [2021-01-26 17:35:06,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-26 17:35:06,255 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:35:06,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:35:06,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1746000022, now seen corresponding path program 1 times [2021-01-26 17:35:06,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:35:06,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640516884] [2021-01-26 17:35:06,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:35:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:35:06,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:35:06,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640516884] [2021-01-26 17:35:06,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:35:06,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:35:06,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530053850] [2021-01-26 17:35:06,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:35:06,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:35:06,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:35:06,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:35:06,357 INFO L87 Difference]: Start difference. First operand 730 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) [2021-01-26 17:35:06,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:35:06,473 INFO L93 Difference]: Finished difference Result 622 states and 1724 transitions. [2021-01-26 17:35:06,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-26 17:35:06,474 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 [2021-01-26 17:35:06,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:35:06,474 INFO L225 Difference]: With dead ends: 622 [2021-01-26 17:35:06,475 INFO L226 Difference]: Without dead ends: 0 [2021-01-26 17:35:06,475 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:35:06,475 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 53 [2021-01-26 17:35:06,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:35:06,475 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-26 17:35:06,476 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) [2021-01-26 17:35:06,476 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-26 17:35:06,476 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-26 17:35:06,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-26 17:35:06,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 05:35:06 BasicIcfg [2021-01-26 17:35:06,481 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-26 17:35:06,485 INFO L168 Benchmark]: Toolchain (without parser) took 7317.99 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 771.8 MB). Free memory was 276.0 MB in the beginning and 884.0 MB in the end (delta: -608.0 MB). Peak memory consumption was 165.0 MB. Max. memory is 16.0 GB. [2021-01-26 17:35:06,485 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 270.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:35:06,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.70 ms. Allocated memory is still 302.0 MB. Free memory was 275.0 MB in the beginning and 274.0 MB in the end (delta: 915.9 kB). Peak memory consumption was 26.8 MB. Max. memory is 16.0 GB. [2021-01-26 17:35:06,489 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.83 ms. Allocated memory is still 302.0 MB. Free memory was 274.0 MB in the beginning and 272.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:35:06,494 INFO L168 Benchmark]: Boogie Preprocessor took 58.45 ms. Allocated memory is still 302.0 MB. Free memory was 272.8 MB in the beginning and 271.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:35:06,495 INFO L168 Benchmark]: RCFGBuilder took 536.67 ms. Allocated memory is still 302.0 MB. Free memory was 270.7 MB in the beginning and 249.0 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-01-26 17:35:06,498 INFO L168 Benchmark]: TraceAbstraction took 5891.20 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 771.8 MB). Free memory was 249.0 MB in the beginning and 884.0 MB in the end (delta: -635.0 MB). Peak memory consumption was 138.3 MB. Max. memory is 16.0 GB. [2021-01-26 17:35:06,504 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory is still 270.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 725.70 ms. Allocated memory is still 302.0 MB. Free memory was 275.0 MB in the beginning and 274.0 MB in the end (delta: 915.9 kB). Peak memory consumption was 26.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 87.83 ms. Allocated memory is still 302.0 MB. Free memory was 274.0 MB in the beginning and 272.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 58.45 ms. Allocated memory is still 302.0 MB. Free memory was 272.8 MB in the beginning and 271.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 536.67 ms. Allocated memory is still 302.0 MB. Free memory was 270.7 MB in the beginning and 249.0 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5891.20 ms. Allocated memory was 302.0 MB in the beginning and 1.1 GB in the end (delta: 771.8 MB). Free memory was 249.0 MB in the beginning and 884.0 MB in the end (delta: -635.0 MB). Peak memory consumption was 138.3 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: 5.7s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 991 SDtfs, 1257 SDslu, 3113 SDs, 0 SdLazy, 385 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9847occurred 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, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 468 NumberOfCodeBlocks, 468 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 458 ConstructedInterpolants, 0 QuantifiedInterpolants, 52608 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...