/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-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 23:43:59,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 23:43:59,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 23:43:59,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 23:43:59,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 23:43:59,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 23:43:59,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 23:43:59,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 23:43:59,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 23:43:59,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 23:43:59,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 23:43:59,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 23:43:59,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 23:43:59,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 23:43:59,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 23:43:59,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 23:43:59,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 23:43:59,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 23:43:59,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 23:43:59,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 23:43:59,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 23:43:59,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 23:43:59,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 23:43:59,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 23:43:59,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-17 23:43:59,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 23:43:59,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 23:43:59,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 23:43:59,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 23:43:59,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 23:43:59,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 23:43:59,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 23:43:59,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 23:43:59,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 23:43:59,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 23:43:59,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 23:43:59,508 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-keepdead.epf [2020-12-17 23:43:59,563 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 23:43:59,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 23:43:59,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 23:43:59,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 23:43:59,569 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 23:43:59,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 23:43:59,570 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 23:43:59,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 23:43:59,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 23:43:59,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 23:43:59,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 23:43:59,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 23:43:59,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 23:43:59,573 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 23:43:59,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 23:43:59,573 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 23:43:59,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 23:43:59,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 23:43:59,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 23:43:59,574 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 23:43:59,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 23:43:59,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:43:59,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 23:43:59,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 23:43:59,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 23:43:59,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 23:43:59,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 23:43:59,576 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 23:43:59,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 23:43:59,577 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-17 23:43:59,577 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 23:43:59,577 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 23:44:00,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 23:44:00,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 23:44:00,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 23:44:00,054 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 23:44:00,055 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 23:44:00,056 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i [2020-12-17 23:44:00,151 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dc283b3a/b79ef327aa7142929c763eea83459110/FLAG3df28f08f [2020-12-17 23:44:00,928 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 23:44:00,928 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i [2020-12-17 23:44:00,952 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dc283b3a/b79ef327aa7142929c763eea83459110/FLAG3df28f08f [2020-12-17 23:44:01,134 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dc283b3a/b79ef327aa7142929c763eea83459110 [2020-12-17 23:44:01,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 23:44:01,141 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 23:44:01,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 23:44:01,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 23:44:01,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 23:44:01,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:44:01" (1/1) ... [2020-12-17 23:44:01,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f82c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:01, skipping insertion in model container [2020-12-17 23:44:01,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:44:01" (1/1) ... [2020-12-17 23:44:01,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 23:44:01,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 23:44:01,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:44:01,791 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 23:44:01,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:44:02,046 INFO L208 MainTranslator]: Completed translation [2020-12-17 23:44:02,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:02 WrapperNode [2020-12-17 23:44:02,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 23:44:02,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 23:44:02,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 23:44:02,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 23:44:02,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:02" (1/1) ... [2020-12-17 23:44:02,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:02" (1/1) ... [2020-12-17 23:44:02,096 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 23:44:02,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 23:44:02,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 23:44:02,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 23:44:02,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:02" (1/1) ... [2020-12-17 23:44:02,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:02" (1/1) ... [2020-12-17 23:44:02,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:02" (1/1) ... [2020-12-17 23:44:02,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:02" (1/1) ... [2020-12-17 23:44:02,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:02" (1/1) ... [2020-12-17 23:44:02,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:02" (1/1) ... [2020-12-17 23:44:02,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:02" (1/1) ... [2020-12-17 23:44:02,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 23:44:02,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 23:44:02,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 23:44:02,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 23:44:02,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:02" (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 [2020-12-17 23:44:02,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 23:44:02,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 23:44:02,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 23:44:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 23:44:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 23:44:02,217 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 23:44:02,217 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 23:44:02,219 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 23:44:02,219 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-17 23:44:02,219 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-17 23:44:02,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 23:44:02,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 23:44:02,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 23:44:02,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 23:44:02,222 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 23:44:02,760 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 23:44:02,760 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 23:44:02,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:44:02 BoogieIcfgContainer [2020-12-17 23:44:02,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 23:44:02,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 23:44:02,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 23:44:02,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 23:44:02,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:44:01" (1/3) ... [2020-12-17 23:44:02,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650c398c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:44:02, skipping insertion in model container [2020-12-17 23:44:02,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:44:02" (2/3) ... [2020-12-17 23:44:02,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650c398c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:44:02, skipping insertion in model container [2020-12-17 23:44:02,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:44:02" (3/3) ... [2020-12-17 23:44:02,772 INFO L111 eAbstractionObserver]: Analyzing ICFG safe004_tso.oepc.i [2020-12-17 23:44:02,790 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 23:44:02,790 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 23:44:02,794 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 23:44:02,795 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 23:44:02,836 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,836 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,836 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,836 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,837 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,837 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,837 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,837 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,838 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,838 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,838 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,838 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,839 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,839 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,839 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,840 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,840 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,840 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,840 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,840 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,841 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,841 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,841 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,842 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,842 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,842 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,843 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,843 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,843 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,843 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,843 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,844 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,844 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,844 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,845 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,845 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,847 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,848 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,848 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,848 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,855 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,855 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,856 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,856 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,860 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,860 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,861 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,861 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:44:02,865 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 23:44:02,879 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-17 23:44:02,903 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 23:44:02,904 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 23:44:02,904 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 23:44:02,904 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 23:44:02,904 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 23:44:02,904 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 23:44:02,905 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 23:44:02,905 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 23:44:02,918 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 78 transitions, 171 flow [2020-12-17 23:44:03,792 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) [2020-12-17 23:44:03,890 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) [2020-12-17 23:44:03,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-17 23:44:03,944 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:44:03,945 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] [2020-12-17 23:44:03,946 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:44:03,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:44:03,953 INFO L82 PathProgramCache]: Analyzing trace with hash -578983952, now seen corresponding path program 1 times [2020-12-17 23:44:03,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:44:03,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125354775] [2020-12-17 23:44:03,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:44:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:44:04,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:44:04,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125354775] [2020-12-17 23:44:04,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:44:04,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:44:04,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56103759] [2020-12-17 23:44:04,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:44:04,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:44:04,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:44:04,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:44:04,552 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) [2020-12-17 23:44:04,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:44:04,964 INFO L93 Difference]: Finished difference Result 12199 states and 42463 transitions. [2020-12-17 23:44:04,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:44:04,967 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 [2020-12-17 23:44:04,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:44:04,969 INFO L763 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 [2020-12-17 23:44:04,969 INFO L78 Accepts]: Start accepts. Automaton has 12199 states and 42463 transitions. Word has length 41 [2020-12-17 23:44:04,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:44:04,971 INFO L481 AbstractCegarLoop]: Abstraction has 12199 states and 42463 transitions. [2020-12-17 23:44:04,972 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) [2020-12-17 23:44:04,972 INFO L276 IsEmpty]: Start isEmpty. Operand 12199 states and 42463 transitions. [2020-12-17 23:44:04,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-17 23:44:04,991 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:44:04,991 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] [2020-12-17 23:44:04,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 23:44:04,992 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:44:04,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:44:04,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1767731663, now seen corresponding path program 1 times [2020-12-17 23:44:04,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:44:04,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084434007] [2020-12-17 23:44:04,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:44:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:44:05,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:44:05,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084434007] [2020-12-17 23:44:05,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:44:05,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:44:05,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902128584] [2020-12-17 23:44:05,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:44:05,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:44:05,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:44:05,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:44:05,255 INFO L87 Difference]: Start difference. First operand 12199 states and 42463 transitions. 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) [2020-12-17 23:44:05,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:44:05,706 INFO L93 Difference]: Finished difference Result 19303 states and 66831 transitions. [2020-12-17 23:44:05,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:44:05,707 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 [2020-12-17 23:44:05,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:44:05,709 INFO L763 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 [2020-12-17 23:44:05,710 INFO L78 Accepts]: Start accepts. Automaton has 19303 states and 66831 transitions. Word has length 43 [2020-12-17 23:44:05,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:44:05,711 INFO L481 AbstractCegarLoop]: Abstraction has 19303 states and 66831 transitions. [2020-12-17 23:44:05,711 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) [2020-12-17 23:44:05,711 INFO L276 IsEmpty]: Start isEmpty. Operand 19303 states and 66831 transitions. [2020-12-17 23:44:05,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-17 23:44:05,738 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:44:05,738 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] [2020-12-17 23:44:05,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 23:44:05,739 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:44:05,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:44:05,742 INFO L82 PathProgramCache]: Analyzing trace with hash 280082414, now seen corresponding path program 1 times [2020-12-17 23:44:05,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:44:05,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851339951] [2020-12-17 23:44:05,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:44:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:44:05,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:44:05,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851339951] [2020-12-17 23:44:05,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:44:05,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:44:05,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737323625] [2020-12-17 23:44:05,920 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:44:05,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:44:05,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:44:05,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:44:05,921 INFO L87 Difference]: Start difference. First operand 19303 states and 66831 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2020-12-17 23:44:06,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:44:06,308 INFO L93 Difference]: Finished difference Result 24283 states and 83583 transitions. [2020-12-17 23:44:06,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:44:06,309 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2020-12-17 23:44:06,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:44:06,310 INFO L763 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 [2020-12-17 23:44:06,310 INFO L78 Accepts]: Start accepts. Automaton has 24283 states and 83583 transitions. Word has length 45 [2020-12-17 23:44:06,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:44:06,311 INFO L481 AbstractCegarLoop]: Abstraction has 24283 states and 83583 transitions. [2020-12-17 23:44:06,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2020-12-17 23:44:06,311 INFO L276 IsEmpty]: Start isEmpty. Operand 24283 states and 83583 transitions. [2020-12-17 23:44:06,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-17 23:44:06,349 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:44:06,349 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] [2020-12-17 23:44:06,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 23:44:06,349 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:44:06,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:44:06,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1176584974, now seen corresponding path program 1 times [2020-12-17 23:44:06,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:44:06,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820405744] [2020-12-17 23:44:06,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:44:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:44:06,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:44:06,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820405744] [2020-12-17 23:44:06,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:44:06,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:44:06,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137986361] [2020-12-17 23:44:06,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:44:06,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:44:06,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:44:06,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:44:06,673 INFO L87 Difference]: Start difference. First operand 24283 states and 83583 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 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) [2020-12-17 23:44:07,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:44:07,306 INFO L93 Difference]: Finished difference Result 38395 states and 130775 transitions. [2020-12-17 23:44:07,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:44:07,307 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 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 [2020-12-17 23:44:07,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:44:07,308 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:44:07,308 INFO L78 Accepts]: Start accepts. Automaton has 38395 states and 130775 transitions. Word has length 46 [2020-12-17 23:44:07,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:44:07,309 INFO L481 AbstractCegarLoop]: Abstraction has 38395 states and 130775 transitions. [2020-12-17 23:44:07,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 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) [2020-12-17 23:44:07,309 INFO L276 IsEmpty]: Start isEmpty. Operand 38395 states and 130775 transitions. [2020-12-17 23:44:07,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-17 23:44:07,353 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:44:07,353 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] [2020-12-17 23:44:07,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 23:44:07,354 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:44:07,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:44:07,354 INFO L82 PathProgramCache]: Analyzing trace with hash 969736422, now seen corresponding path program 1 times [2020-12-17 23:44:07,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:44:07,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978216711] [2020-12-17 23:44:07,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:44:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:44:07,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:44:07,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978216711] [2020-12-17 23:44:07,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:44:07,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:44:07,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215413123] [2020-12-17 23:44:07,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:44:07,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:44:07,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:44:07,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:44:07,602 INFO L87 Difference]: Start difference. First operand 38395 states and 130775 transitions. 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) [2020-12-17 23:44:08,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:44:08,360 INFO L93 Difference]: Finished difference Result 67387 states and 225183 transitions. [2020-12-17 23:44:08,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-17 23:44:08,361 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 [2020-12-17 23:44:08,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:44:08,361 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-12-17 23:44:08,362 INFO L78 Accepts]: Start accepts. Automaton has 67387 states and 225183 transitions. Word has length 47 [2020-12-17 23:44:08,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:44:08,367 INFO L481 AbstractCegarLoop]: Abstraction has 67387 states and 225183 transitions. [2020-12-17 23:44:08,368 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) [2020-12-17 23:44:08,368 INFO L276 IsEmpty]: Start isEmpty. Operand 67387 states and 225183 transitions. [2020-12-17 23:44:08,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-17 23:44:08,426 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:44:08,427 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] [2020-12-17 23:44:08,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-17 23:44:08,427 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:44:08,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:44:08,430 INFO L82 PathProgramCache]: Analyzing trace with hash -991149868, now seen corresponding path program 1 times [2020-12-17 23:44:08,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:44:08,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298161077] [2020-12-17 23:44:08,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:44:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:44:08,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:44:08,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298161077] [2020-12-17 23:44:08,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:44:08,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:44:08,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963731285] [2020-12-17 23:44:08,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:44:08,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:44:08,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:44:08,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:44:08,612 INFO L87 Difference]: Start difference. First operand 67387 states and 225183 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) [2020-12-17 23:44:09,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:44:09,680 INFO L93 Difference]: Finished difference Result 82171 states and 273887 transitions. [2020-12-17 23:44:09,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:44:09,681 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 [2020-12-17 23:44:09,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:44:09,682 INFO L763 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 [2020-12-17 23:44:09,682 INFO L78 Accepts]: Start accepts. Automaton has 82171 states and 273887 transitions. Word has length 47 [2020-12-17 23:44:09,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:44:09,682 INFO L481 AbstractCegarLoop]: Abstraction has 82171 states and 273887 transitions. [2020-12-17 23:44:09,683 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) [2020-12-17 23:44:09,683 INFO L276 IsEmpty]: Start isEmpty. Operand 82171 states and 273887 transitions. [2020-12-17 23:44:09,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-17 23:44:09,768 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:44:09,768 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] [2020-12-17 23:44:09,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-17 23:44:09,768 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:44:09,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:44:09,769 INFO L82 PathProgramCache]: Analyzing trace with hash 608113037, now seen corresponding path program 1 times [2020-12-17 23:44:09,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:44:09,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946901018] [2020-12-17 23:44:09,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:44:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:44:09,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:44:09,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946901018] [2020-12-17 23:44:09,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:44:09,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:44:09,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264755665] [2020-12-17 23:44:09,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:44:09,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:44:09,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:44:09,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:44:09,883 INFO L87 Difference]: Start difference. First operand 82171 states and 273887 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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) [2020-12-17 23:44:10,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:44:10,360 INFO L93 Difference]: Finished difference Result 45510 states and 148505 transitions. [2020-12-17 23:44:10,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-17 23:44:10,361 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 [2020-12-17 23:44:10,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:44:10,362 INFO L763 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 [2020-12-17 23:44:10,362 INFO L78 Accepts]: Start accepts. Automaton has 45510 states and 148505 transitions. Word has length 49 [2020-12-17 23:44:10,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:44:10,362 INFO L481 AbstractCegarLoop]: Abstraction has 45510 states and 148505 transitions. [2020-12-17 23:44:10,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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) [2020-12-17 23:44:10,362 INFO L276 IsEmpty]: Start isEmpty. Operand 45510 states and 148505 transitions. [2020-12-17 23:44:10,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-17 23:44:10,611 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:44:10,611 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] [2020-12-17 23:44:10,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-17 23:44:10,612 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:44:10,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:44:10,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1984353874, now seen corresponding path program 1 times [2020-12-17 23:44:10,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:44:10,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909746155] [2020-12-17 23:44:10,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:44:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:44:10,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:44:10,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909746155] [2020-12-17 23:44:10,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:44:10,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:44:10,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880889037] [2020-12-17 23:44:10,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:44:10,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:44:10,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:44:10,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:44:10,781 INFO L87 Difference]: Start difference. First operand 45510 states and 148505 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:44:11,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:44:11,196 INFO L93 Difference]: Finished difference Result 25851 states and 82131 transitions. [2020-12-17 23:44:11,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:44:11,197 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2020-12-17 23:44:11,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:44:11,198 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-12-17 23:44:11,198 INFO L78 Accepts]: Start accepts. Automaton has 25851 states and 82131 transitions. Word has length 50 [2020-12-17 23:44:11,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:44:11,199 INFO L481 AbstractCegarLoop]: Abstraction has 25851 states and 82131 transitions. [2020-12-17 23:44:11,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:44:11,199 INFO L276 IsEmpty]: Start isEmpty. Operand 25851 states and 82131 transitions. [2020-12-17 23:44:11,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-17 23:44:11,240 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:44:11,240 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] [2020-12-17 23:44:11,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-17 23:44:11,241 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:44:11,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:44:11,241 INFO L82 PathProgramCache]: Analyzing trace with hash -126840041, now seen corresponding path program 1 times [2020-12-17 23:44:11,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:44:11,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890562604] [2020-12-17 23:44:11,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:44:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:44:11,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:44:11,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890562604] [2020-12-17 23:44:11,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:44:11,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-17 23:44:11,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976530486] [2020-12-17 23:44:11,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-17 23:44:11,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:44:11,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-17 23:44:11,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-17 23:44:11,441 INFO L87 Difference]: Start difference. First operand 25851 states and 82131 transitions. 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) [2020-12-17 23:44:11,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:44:11,919 INFO L93 Difference]: Finished difference Result 16581 states and 52131 transitions. [2020-12-17 23:44:11,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-17 23:44:11,920 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 [2020-12-17 23:44:11,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:44:11,921 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-12-17 23:44:11,921 INFO L78 Accepts]: Start accepts. Automaton has 16581 states and 52131 transitions. Word has length 51 [2020-12-17 23:44:11,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:44:11,921 INFO L481 AbstractCegarLoop]: Abstraction has 16581 states and 52131 transitions. [2020-12-17 23:44:11,921 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) [2020-12-17 23:44:11,922 INFO L276 IsEmpty]: Start isEmpty. Operand 16581 states and 52131 transitions. [2020-12-17 23:44:11,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-17 23:44:11,952 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:44:11,953 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] [2020-12-17 23:44:11,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-17 23:44:11,953 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:44:11,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:44:11,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1190692008, now seen corresponding path program 1 times [2020-12-17 23:44:11,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:44:11,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713034699] [2020-12-17 23:44:11,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:44:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:44:12,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:44:12,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713034699] [2020-12-17 23:44:12,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:44:12,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:44:12,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286528761] [2020-12-17 23:44:12,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:44:12,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:44:12,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:44:12,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:44:12,057 INFO L87 Difference]: Start difference. First operand 16581 states and 52131 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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) [2020-12-17 23:44:12,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:44:12,242 INFO L93 Difference]: Finished difference Result 22561 states and 70509 transitions. [2020-12-17 23:44:12,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-17 23:44:12,243 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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 [2020-12-17 23:44:12,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:44:12,244 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-17 23:44:12,244 INFO L78 Accepts]: Start accepts. Automaton has 22561 states and 70509 transitions. Word has length 53 [2020-12-17 23:44:12,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:44:12,245 INFO L481 AbstractCegarLoop]: Abstraction has 22561 states and 70509 transitions. [2020-12-17 23:44:12,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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) [2020-12-17 23:44:12,245 INFO L276 IsEmpty]: Start isEmpty. Operand 22561 states and 70509 transitions. [2020-12-17 23:44:12,289 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 23:44:12,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-17 23:44:12,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 11:44:12 BasicIcfg [2020-12-17 23:44:12,294 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 23:44:12,296 INFO L168 Benchmark]: Toolchain (without parser) took 11154.59 ms. Allocated memory was 302.0 MB in the beginning and 8.1 GB in the end (delta: 7.8 GB). Free memory was 276.3 MB in the beginning and 7.2 GB in the end (delta: -7.0 GB). Peak memory consumption was 815.2 MB. Max. memory is 16.0 GB. [2020-12-17 23:44:12,297 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 302.0 MB. Free memory was 270.1 MB in the beginning and 269.9 MB in the end (delta: 153.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:44:12,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 903.57 ms. Allocated memory is still 302.0 MB. Free memory was 276.2 MB in the beginning and 276.6 MB in the end (delta: -428.6 kB). Peak memory consumption was 28.9 MB. Max. memory is 16.0 GB. [2020-12-17 23:44:12,298 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.35 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 274.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:44:12,299 INFO L168 Benchmark]: Boogie Preprocessor took 27.49 ms. Allocated memory is still 302.0 MB. Free memory was 274.6 MB in the beginning and 272.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:44:12,302 INFO L168 Benchmark]: RCFGBuilder took 638.04 ms. Allocated memory is still 302.0 MB. Free memory was 272.5 MB in the beginning and 250.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-12-17 23:44:12,303 INFO L168 Benchmark]: TraceAbstraction took 9529.36 ms. Allocated memory was 302.0 MB in the beginning and 8.1 GB in the end (delta: 7.8 GB). Free memory was 249.5 MB in the beginning and 7.2 GB in the end (delta: -7.0 GB). Peak memory consumption was 788.4 MB. Max. memory is 16.0 GB. [2020-12-17 23:44:12,306 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 302.0 MB. Free memory was 270.1 MB in the beginning and 269.9 MB in the end (delta: 153.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 903.57 ms. Allocated memory is still 302.0 MB. Free memory was 276.2 MB in the beginning and 276.6 MB in the end (delta: -428.6 kB). Peak memory consumption was 28.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 48.35 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 274.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.49 ms. Allocated memory is still 302.0 MB. Free memory was 274.6 MB in the beginning and 272.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 638.04 ms. Allocated memory is still 302.0 MB. Free memory was 272.5 MB in the beginning and 250.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 9529.36 ms. Allocated memory was 302.0 MB in the beginning and 8.1 GB in the end (delta: 7.8 GB). Free memory was 249.5 MB in the beginning and 7.2 GB in the end (delta: -7.0 GB). Peak memory consumption was 788.4 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: 9.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 1202 SDtfs, 2143 SDslu, 4082 SDs, 0 SdLazy, 454 SolverSat, 83 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82171occurred in iteration=6, 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, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 472 NumberOfCodeBlocks, 472 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 462 ConstructedInterpolants, 0 QuantifiedInterpolants, 56632 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...