/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 17:23:15,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 17:23:15,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 17:23:15,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-21 17:23:15,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-21 17:23:15,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-21 17:23:15,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-21 17:23:15,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-21 17:23:15,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-21 17:23:15,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-21 17:23:15,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-21 17:23:15,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-21 17:23:15,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-21 17:23:15,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-21 17:23:15,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-21 17:23:15,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-21 17:23:15,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-21 17:23:15,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-21 17:23:15,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-21 17:23:15,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-21 17:23:15,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-21 17:23:15,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-21 17:23:15,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-21 17:23:15,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-21 17:23:15,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-21 17:23:15,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-21 17:23:15,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-21 17:23:15,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-21 17:23:15,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-21 17:23:15,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-21 17:23:15,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-21 17:23:15,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-21 17:23:15,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-21 17:23:15,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-21 17:23:15,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-21 17:23:15,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-21 17:23:15,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-21 17:23:15,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-21 17:23:15,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 17:23:15,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 17:23:15,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 17:23:15,701 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 [2021-05-21 17:23:15,736 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 17:23:15,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 17:23:15,737 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 17:23:15,737 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 17:23:15,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 17:23:15,740 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 17:23:15,740 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 17:23:15,740 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 17:23:15,740 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 17:23:15,741 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 17:23:15,741 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 17:23:15,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 17:23:15,742 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 17:23:15,742 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 17:23:15,742 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 17:23:15,742 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 17:23:15,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 17:23:15,742 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 17:23:15,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 17:23:15,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 17:23:15,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 17:23:15,743 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 17:23:15,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 17:23:15,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 17:23:15,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 17:23:15,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 17:23:15,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 17:23:15,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 17:23:15,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 17:23:15,744 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 17:23:15,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 17:23:15,744 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 17:23:16,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 17:23:16,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 17:23:16,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 17:23:16,068 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 17:23:16,069 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 17:23:16,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i [2021-05-21 17:23:16,128 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6531c8cde/c4688469f90c4040bf12a942656327ad/FLAGde286b9e5 [2021-05-21 17:23:16,501 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 17:23:16,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i [2021-05-21 17:23:16,518 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6531c8cde/c4688469f90c4040bf12a942656327ad/FLAGde286b9e5 [2021-05-21 17:23:16,866 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6531c8cde/c4688469f90c4040bf12a942656327ad [2021-05-21 17:23:16,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 17:23:16,871 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 17:23:16,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 17:23:16,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 17:23:16,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 17:23:16,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 05:23:16" (1/1) ... [2021-05-21 17:23:16,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@410b5bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:16, skipping insertion in model container [2021-05-21 17:23:16,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 05:23:16" (1/1) ... [2021-05-21 17:23:16,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 17:23:16,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 17:23:17,150 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i[949,962] [2021-05-21 17:23:17,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 17:23:17,298 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 17:23:17,307 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i[949,962] [2021-05-21 17:23:17,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 17:23:17,380 INFO L208 MainTranslator]: Completed translation [2021-05-21 17:23:17,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:17 WrapperNode [2021-05-21 17:23:17,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 17:23:17,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 17:23:17,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 17:23:17,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 17:23:17,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:17" (1/1) ... [2021-05-21 17:23:17,414 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:17" (1/1) ... [2021-05-21 17:23:17,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 17:23:17,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 17:23:17,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 17:23:17,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 17:23:17,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:17" (1/1) ... [2021-05-21 17:23:17,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:17" (1/1) ... [2021-05-21 17:23:17,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:17" (1/1) ... [2021-05-21 17:23:17,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:17" (1/1) ... [2021-05-21 17:23:17,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:17" (1/1) ... [2021-05-21 17:23:17,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:17" (1/1) ... [2021-05-21 17:23:17,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:17" (1/1) ... [2021-05-21 17:23:17,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 17:23:17,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 17:23:17,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 17:23:17,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 17:23:17,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:17" (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 [2021-05-21 17:23:17,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 17:23:17,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 17:23:17,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 17:23:17,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 17:23:17,556 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-05-21 17:23:17,557 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-05-21 17:23:17,558 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-05-21 17:23:17,558 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-05-21 17:23:17,558 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-05-21 17:23:17,558 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-05-21 17:23:17,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 17:23:17,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 17:23:17,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 17:23:17,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 17:23:17,560 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 17:23:17,883 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 17:23:17,883 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-05-21 17:23:17,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 05:23:17 BoogieIcfgContainer [2021-05-21 17:23:17,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 17:23:17,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 17:23:17,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 17:23:17,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 17:23:17,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 05:23:16" (1/3) ... [2021-05-21 17:23:17,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372e2399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 05:23:17, skipping insertion in model container [2021-05-21 17:23:17,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:23:17" (2/3) ... [2021-05-21 17:23:17,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372e2399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 05:23:17, skipping insertion in model container [2021-05-21 17:23:17,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 05:23:17" (3/3) ... [2021-05-21 17:23:17,892 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_tso.opt.i [2021-05-21 17:23:17,896 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 17:23:17,897 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 17:23:17,897 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 17:23:17,897 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 17:23:17,926 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,927 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,927 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,927 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,928 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,928 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,928 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,928 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,929 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,929 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,929 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,929 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,930 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,930 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,930 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,930 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,930 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,931 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,931 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,931 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,932 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,932 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,933 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,934 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,934 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,936 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,936 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,937 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,940 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,940 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,940 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,941 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,941 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,941 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,941 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,942 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,943 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,944 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,944 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,944 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,949 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,949 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,950 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,950 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,952 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,952 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,952 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,952 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:23:17,955 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-05-21 17:23:17,974 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-05-21 17:23:17,999 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 17:23:17,999 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 17:23:17,999 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 17:23:18,000 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 17:23:18,000 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 17:23:18,000 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 17:23:18,000 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 17:23:18,000 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 17:23:18,014 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 90 places, 82 transitions, 179 flow [2021-05-21 17:23:18,448 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8057 states, 8055 states have (on average 3.532588454376164) internal successors, (28455), 8056 states have internal predecessors, (28455), 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) [2021-05-21 17:23:18,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 8057 states, 8055 states have (on average 3.532588454376164) internal successors, (28455), 8056 states have internal predecessors, (28455), 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) [2021-05-21 17:23:18,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-05-21 17:23:18,521 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:18,522 INFO L521 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] [2021-05-21 17:23:18,522 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:18,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:18,527 INFO L82 PathProgramCache]: Analyzing trace with hash -710190392, now seen corresponding path program 1 times [2021-05-21 17:23:18,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:18,535 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380809477] [2021-05-21 17:23:18,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:19,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:19,014 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:19,014 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380809477] [2021-05-21 17:23:19,015 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380809477] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:19,015 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:19,015 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:23:19,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799511060] [2021-05-21 17:23:19,021 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:23:19,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:19,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:23:19,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:23:19,050 INFO L87 Difference]: Start difference. First operand has 8057 states, 8055 states have (on average 3.532588454376164) internal successors, (28455), 8056 states have internal predecessors, (28455), 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 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:19,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:19,431 INFO L93 Difference]: Finished difference Result 16603 states and 56511 transitions. [2021-05-21 17:23:19,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-21 17:23:19,433 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-05-21 17:23:19,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:19,479 INFO L225 Difference]: With dead ends: 16603 [2021-05-21 17:23:19,480 INFO L226 Difference]: Without dead ends: 5653 [2021-05-21 17:23:19,481 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 187.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-05-21 17:23:19,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5653 states. [2021-05-21 17:23:19,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5653 to 4741. [2021-05-21 17:23:19,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4741 states, 4740 states have (on average 3.2978902953586497) internal successors, (15632), 4740 states have internal predecessors, (15632), 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) [2021-05-21 17:23:19,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4741 states to 4741 states and 15632 transitions. [2021-05-21 17:23:19,839 INFO L78 Accepts]: Start accepts. Automaton has 4741 states and 15632 transitions. Word has length 48 [2021-05-21 17:23:19,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:19,840 INFO L482 AbstractCegarLoop]: Abstraction has 4741 states and 15632 transitions. [2021-05-21 17:23:19,840 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:19,841 INFO L276 IsEmpty]: Start isEmpty. Operand 4741 states and 15632 transitions. [2021-05-21 17:23:19,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-05-21 17:23:19,888 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:19,888 INFO L521 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] [2021-05-21 17:23:19,888 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 17:23:19,888 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:19,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:19,889 INFO L82 PathProgramCache]: Analyzing trace with hash -157935543, now seen corresponding path program 1 times [2021-05-21 17:23:19,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:19,889 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073191458] [2021-05-21 17:23:19,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:20,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:20,065 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:20,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073191458] [2021-05-21 17:23:20,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073191458] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:20,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:20,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:23:20,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32602755] [2021-05-21 17:23:20,067 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:23:20,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:20,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:23:20,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:23:20,070 INFO L87 Difference]: Start difference. First operand 4741 states and 15632 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) [2021-05-21 17:23:20,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:20,427 INFO L93 Difference]: Finished difference Result 7472 states and 24362 transitions. [2021-05-21 17:23:20,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:23:20,428 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 [2021-05-21 17:23:20,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:20,466 INFO L225 Difference]: With dead ends: 7472 [2021-05-21 17:23:20,467 INFO L226 Difference]: Without dead ends: 5712 [2021-05-21 17:23:20,467 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 280.0ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-05-21 17:23:20,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5712 states. [2021-05-21 17:23:20,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5712 to 4800. [2021-05-21 17:23:20,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4800 states, 4799 states have (on average 3.2890185455303187) internal successors, (15784), 4799 states have internal predecessors, (15784), 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) [2021-05-21 17:23:20,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4800 states to 4800 states and 15784 transitions. [2021-05-21 17:23:20,628 INFO L78 Accepts]: Start accepts. Automaton has 4800 states and 15784 transitions. Word has length 50 [2021-05-21 17:23:20,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:20,629 INFO L482 AbstractCegarLoop]: Abstraction has 4800 states and 15784 transitions. [2021-05-21 17:23:20,630 INFO L483 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) [2021-05-21 17:23:20,630 INFO L276 IsEmpty]: Start isEmpty. Operand 4800 states and 15784 transitions. [2021-05-21 17:23:20,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-05-21 17:23:20,641 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:20,641 INFO L521 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] [2021-05-21 17:23:20,642 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 17:23:20,642 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:20,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:20,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1470695374, now seen corresponding path program 1 times [2021-05-21 17:23:20,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:20,643 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51147351] [2021-05-21 17:23:20,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:20,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:20,732 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:20,732 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51147351] [2021-05-21 17:23:20,732 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51147351] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:20,732 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:20,733 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:23:20,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218461362] [2021-05-21 17:23:20,733 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:23:20,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:20,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:23:20,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:23:20,734 INFO L87 Difference]: Start difference. First operand 4800 states and 15784 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2021-05-21 17:23:20,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:20,978 INFO L93 Difference]: Finished difference Result 6780 states and 22016 transitions. [2021-05-21 17:23:20,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-21 17:23:20,979 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2021-05-21 17:23:20,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:21,012 INFO L225 Difference]: With dead ends: 6780 [2021-05-21 17:23:21,012 INFO L226 Difference]: Without dead ends: 3545 [2021-05-21 17:23:21,012 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 163.2ms TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-05-21 17:23:21,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3545 states. [2021-05-21 17:23:21,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3545 to 3225. [2021-05-21 17:23:21,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3225 states, 3224 states have (on average 3.240694789081886) internal successors, (10448), 3224 states have internal predecessors, (10448), 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) [2021-05-21 17:23:21,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3225 states to 3225 states and 10448 transitions. [2021-05-21 17:23:21,105 INFO L78 Accepts]: Start accepts. Automaton has 3225 states and 10448 transitions. Word has length 52 [2021-05-21 17:23:21,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:21,107 INFO L482 AbstractCegarLoop]: Abstraction has 3225 states and 10448 transitions. [2021-05-21 17:23:21,107 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2021-05-21 17:23:21,107 INFO L276 IsEmpty]: Start isEmpty. Operand 3225 states and 10448 transitions. [2021-05-21 17:23:21,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-21 17:23:21,115 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:21,115 INFO L521 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] [2021-05-21 17:23:21,115 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 17:23:21,115 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:21,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:21,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1238873360, now seen corresponding path program 1 times [2021-05-21 17:23:21,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:21,118 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140829102] [2021-05-21 17:23:21,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:21,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:21,260 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:21,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140829102] [2021-05-21 17:23:21,260 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140829102] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:21,260 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:21,261 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:23:21,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468117689] [2021-05-21 17:23:21,261 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:23:21,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:21,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:23:21,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:23:21,262 INFO L87 Difference]: Start difference. First operand 3225 states and 10448 transitions. 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) [2021-05-21 17:23:21,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:21,432 INFO L93 Difference]: Finished difference Result 5161 states and 16596 transitions. [2021-05-21 17:23:21,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 17:23:21,432 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 [2021-05-21 17:23:21,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:21,443 INFO L225 Difference]: With dead ends: 5161 [2021-05-21 17:23:21,443 INFO L226 Difference]: Without dead ends: 3465 [2021-05-21 17:23:21,443 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 145.5ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-05-21 17:23:21,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2021-05-21 17:23:21,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 2985. [2021-05-21 17:23:21,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2985 states, 2984 states have (on average 3.1943699731903483) internal successors, (9532), 2984 states have internal predecessors, (9532), 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) [2021-05-21 17:23:21,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2985 states to 2985 states and 9532 transitions. [2021-05-21 17:23:21,523 INFO L78 Accepts]: Start accepts. Automaton has 2985 states and 9532 transitions. Word has length 53 [2021-05-21 17:23:21,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:21,524 INFO L482 AbstractCegarLoop]: Abstraction has 2985 states and 9532 transitions. [2021-05-21 17:23:21,524 INFO L483 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) [2021-05-21 17:23:21,524 INFO L276 IsEmpty]: Start isEmpty. Operand 2985 states and 9532 transitions. [2021-05-21 17:23:21,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-05-21 17:23:21,531 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:21,531 INFO L521 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, 1] [2021-05-21 17:23:21,531 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 17:23:21,531 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:21,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:21,535 INFO L82 PathProgramCache]: Analyzing trace with hash -230361873, now seen corresponding path program 1 times [2021-05-21 17:23:21,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:21,536 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899385099] [2021-05-21 17:23:21,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:21,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:21,666 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:21,666 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899385099] [2021-05-21 17:23:21,667 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899385099] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:21,667 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:21,667 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:23:21,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164811347] [2021-05-21 17:23:21,668 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:23:21,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:21,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:23:21,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:23:21,669 INFO L87 Difference]: Start difference. First operand 2985 states and 9532 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-05-21 17:23:21,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:21,795 INFO L93 Difference]: Finished difference Result 3393 states and 10686 transitions. [2021-05-21 17:23:21,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 17:23:21,796 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2021-05-21 17:23:21,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:21,799 INFO L225 Difference]: With dead ends: 3393 [2021-05-21 17:23:21,800 INFO L226 Difference]: Without dead ends: 1183 [2021-05-21 17:23:21,800 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 115.0ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-05-21 17:23:21,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2021-05-21 17:23:21,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2021-05-21 17:23:21,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 3.020304568527919) internal successors, (3570), 1182 states have internal predecessors, (3570), 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) [2021-05-21 17:23:21,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 3570 transitions. [2021-05-21 17:23:21,825 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 3570 transitions. Word has length 54 [2021-05-21 17:23:21,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:21,825 INFO L482 AbstractCegarLoop]: Abstraction has 1183 states and 3570 transitions. [2021-05-21 17:23:21,825 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2021-05-21 17:23:21,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 3570 transitions. [2021-05-21 17:23:21,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-05-21 17:23:21,828 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:21,828 INFO L521 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, 1, 1] [2021-05-21 17:23:21,828 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 17:23:21,828 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:21,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:21,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1721608039, now seen corresponding path program 1 times [2021-05-21 17:23:21,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:21,829 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949230726] [2021-05-21 17:23:21,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:21,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:21,914 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:21,914 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949230726] [2021-05-21 17:23:21,914 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949230726] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:21,914 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:21,915 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 17:23:21,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576049706] [2021-05-21 17:23:21,915 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 17:23:21,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:21,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 17:23:21,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 17:23:21,916 INFO L87 Difference]: Start difference. First operand 1183 states and 3570 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2021-05-21 17:23:22,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:22,021 INFO L93 Difference]: Finished difference Result 1388 states and 4133 transitions. [2021-05-21 17:23:22,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 17:23:22,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 55 [2021-05-21 17:23:22,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:22,025 INFO L225 Difference]: With dead ends: 1388 [2021-05-21 17:23:22,025 INFO L226 Difference]: Without dead ends: 1068 [2021-05-21 17:23:22,026 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 84.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 17:23:22,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2021-05-21 17:23:22,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1068. [2021-05-21 17:23:22,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1067 states have (on average 2.980318650421743) internal successors, (3180), 1067 states have internal predecessors, (3180), 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) [2021-05-21 17:23:22,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 3180 transitions. [2021-05-21 17:23:22,060 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 3180 transitions. Word has length 55 [2021-05-21 17:23:22,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:22,060 INFO L482 AbstractCegarLoop]: Abstraction has 1068 states and 3180 transitions. [2021-05-21 17:23:22,060 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2021-05-21 17:23:22,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 3180 transitions. [2021-05-21 17:23:22,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-05-21 17:23:22,063 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:22,063 INFO L521 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, 1, 1, 1] [2021-05-21 17:23:22,063 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 17:23:22,063 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:22,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:22,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1625570487, now seen corresponding path program 1 times [2021-05-21 17:23:22,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:22,064 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181469619] [2021-05-21 17:23:22,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:22,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:22,139 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:22,139 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181469619] [2021-05-21 17:23:22,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181469619] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:22,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:22,140 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 17:23:22,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818824522] [2021-05-21 17:23:22,140 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 17:23:22,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:22,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 17:23:22,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 17:23:22,141 INFO L87 Difference]: Start difference. First operand 1068 states and 3180 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2021-05-21 17:23:22,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:22,307 INFO L93 Difference]: Finished difference Result 960 states and 2760 transitions. [2021-05-21 17:23:22,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 17:23:22,308 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 56 [2021-05-21 17:23:22,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:22,309 INFO L225 Difference]: With dead ends: 960 [2021-05-21 17:23:22,310 INFO L226 Difference]: Without dead ends: 708 [2021-05-21 17:23:22,310 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 127.1ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-05-21 17:23:22,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2021-05-21 17:23:22,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2021-05-21 17:23:22,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 707 states have (on average 2.8217821782178216) internal successors, (1995), 707 states have internal predecessors, (1995), 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) [2021-05-21 17:23:22,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1995 transitions. [2021-05-21 17:23:22,327 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1995 transitions. Word has length 56 [2021-05-21 17:23:22,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:22,327 INFO L482 AbstractCegarLoop]: Abstraction has 708 states and 1995 transitions. [2021-05-21 17:23:22,327 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2021-05-21 17:23:22,328 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1995 transitions. [2021-05-21 17:23:22,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-05-21 17:23:22,329 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:23:22,329 INFO L521 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, 1, 1, 1, 1] [2021-05-21 17:23:22,329 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-21 17:23:22,329 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:23:22,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:23:22,330 INFO L82 PathProgramCache]: Analyzing trace with hash -255944118, now seen corresponding path program 1 times [2021-05-21 17:23:22,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:23:22,330 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068131504] [2021-05-21 17:23:22,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:23:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:23:22,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:23:22,416 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:23:22,416 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068131504] [2021-05-21 17:23:22,416 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068131504] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:23:22,416 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:23:22,417 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 17:23:22,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62624398] [2021-05-21 17:23:22,418 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 17:23:22,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:23:22,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 17:23:22,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-05-21 17:23:22,422 INFO L87 Difference]: Start difference. First operand 708 states and 1995 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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) [2021-05-21 17:23:22,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:23:22,500 INFO L93 Difference]: Finished difference Result 411 states and 1104 transitions. [2021-05-21 17:23:22,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-21 17:23:22,500 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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 57 [2021-05-21 17:23:22,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:23:22,500 INFO L225 Difference]: With dead ends: 411 [2021-05-21 17:23:22,500 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 17:23:22,500 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 90.1ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-05-21 17:23:22,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 17:23:22,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 17:23:22,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:23:22,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 17:23:22,501 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2021-05-21 17:23:22,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:23:22,501 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 17:23:22,501 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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) [2021-05-21 17:23:22,501 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 17:23:22,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 17:23:22,502 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-21 17:23:22,503 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 17:23:22,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 05:23:22 BasicIcfg [2021-05-21 17:23:22,505 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 17:23:22,506 INFO L168 Benchmark]: Toolchain (without parser) took 5635.32 ms. Allocated memory was 385.9 MB in the beginning and 916.5 MB in the end (delta: 530.6 MB). Free memory was 348.4 MB in the beginning and 727.1 MB in the end (delta: -378.7 MB). Peak memory consumption was 154.9 MB. Max. memory is 16.0 GB. [2021-05-21 17:23:22,506 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 385.9 MB. Free memory is still 366.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 17:23:22,507 INFO L168 Benchmark]: CACSL2BoogieTranslator took 507.43 ms. Allocated memory is still 385.9 MB. Free memory was 348.2 MB in the beginning and 347.9 MB in the end (delta: 359.0 kB). Peak memory consumption was 9.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:23:22,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.85 ms. Allocated memory is still 385.9 MB. Free memory was 347.9 MB in the beginning and 345.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:23:22,507 INFO L168 Benchmark]: Boogie Preprocessor took 33.59 ms. Allocated memory is still 385.9 MB. Free memory was 345.8 MB in the beginning and 343.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:23:22,508 INFO L168 Benchmark]: RCFGBuilder took 412.49 ms. Allocated memory is still 385.9 MB. Free memory was 343.7 MB in the beginning and 319.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-05-21 17:23:22,508 INFO L168 Benchmark]: TraceAbstraction took 4618.85 ms. Allocated memory was 385.9 MB in the beginning and 916.5 MB in the end (delta: 530.6 MB). Free memory was 318.5 MB in the beginning and 727.1 MB in the end (delta: -408.6 MB). Peak memory consumption was 125.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:23:22,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 385.9 MB. Free memory is still 366.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 507.43 ms. Allocated memory is still 385.9 MB. Free memory was 348.2 MB in the beginning and 347.9 MB in the end (delta: 359.0 kB). Peak memory consumption was 9.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 55.85 ms. Allocated memory is still 385.9 MB. Free memory was 347.9 MB in the beginning and 345.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 33.59 ms. Allocated memory is still 385.9 MB. Free memory was 345.8 MB in the beginning and 343.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 412.49 ms. Allocated memory is still 385.9 MB. Free memory was 343.7 MB in the beginning and 319.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4618.85 ms. Allocated memory was 385.9 MB in the beginning and 916.5 MB in the end (delta: 530.6 MB). Free memory was 318.5 MB in the beginning and 727.1 MB in the end (delta: -408.6 MB). Peak memory consumption was 125.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 104 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4505.1ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 151.2ms, AutomataDifference: 1812.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 447.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 794 SDtfs, 1379 SDslu, 2745 SDs, 0 SdLazy, 316 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 310.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1193.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8057occurred in iteration=0, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 756.8ms AutomataMinimizationTime, 8 MinimizatonAttempts, 2624 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.5ms SsaConstructionTime, 191.9ms SatisfiabilityAnalysisTime, 927.3ms InterpolantComputationTime, 425 NumberOfCodeBlocks, 425 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 417 ConstructedInterpolants, 0 QuantifiedInterpolants, 1757 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...