/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 22:25:42,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 22:25:42,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 22:25:42,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 22:25:42,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 22:25:42,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 22:25:42,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 22:25:42,730 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 22:25:42,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 22:25:42,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 22:25:42,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 22:25:42,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 22:25:42,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 22:25:42,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 22:25:42,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 22:25:42,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 22:25:42,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 22:25:42,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 22:25:42,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 22:25:42,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 22:25:42,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 22:25:42,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 22:25:42,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 22:25:42,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 22:25:42,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 22:25:42,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 22:25:42,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 22:25:42,769 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 22:25:42,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 22:25:42,772 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 22:25:42,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 22:25:42,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 22:25:42,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 22:25:42,776 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 22:25:42,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 22:25:42,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 22:25:42,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 22:25:42,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 22:25:42,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 22:25:42,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 22:25:42,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 22:25:42,785 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-SemanticLbe.epf [2020-04-17 22:25:42,799 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 22:25:42,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 22:25:42,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 22:25:42,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 22:25:42,801 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 22:25:42,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 22:25:42,801 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 22:25:42,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 22:25:42,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 22:25:42,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 22:25:42,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 22:25:42,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 22:25:42,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 22:25:42,803 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 22:25:42,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 22:25:42,803 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 22:25:42,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 22:25:42,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 22:25:42,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 22:25:42,804 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 22:25:42,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 22:25:42,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 22:25:42,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 22:25:42,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 22:25:42,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 22:25:42,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 22:25:42,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 22:25:42,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 22:25:42,806 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 22:25:43,065 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 22:25:43,077 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 22:25:43,080 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 22:25:43,081 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 22:25:43,081 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 22:25:43,081 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i [2020-04-17 22:25:43,147 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9a8beace/e6d34ee404414729b7d531dc62015111/FLAG8ec054f82 [2020-04-17 22:25:43,642 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 22:25:43,642 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i [2020-04-17 22:25:43,667 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9a8beace/e6d34ee404414729b7d531dc62015111/FLAG8ec054f82 [2020-04-17 22:25:43,975 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9a8beace/e6d34ee404414729b7d531dc62015111 [2020-04-17 22:25:43,985 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 22:25:44,002 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 22:25:44,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 22:25:44,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 22:25:44,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 22:25:44,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:25:43" (1/1) ... [2020-04-17 22:25:44,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b347a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:44, skipping insertion in model container [2020-04-17 22:25:44,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:25:43" (1/1) ... [2020-04-17 22:25:44,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 22:25:44,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 22:25:44,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:25:44,625 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 22:25:44,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:25:44,769 INFO L208 MainTranslator]: Completed translation [2020-04-17 22:25:44,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:44 WrapperNode [2020-04-17 22:25:44,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 22:25:44,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 22:25:44,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 22:25:44,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 22:25:44,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:44" (1/1) ... [2020-04-17 22:25:44,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:44" (1/1) ... [2020-04-17 22:25:44,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 22:25:44,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 22:25:44,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 22:25:44,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 22:25:44,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:44" (1/1) ... [2020-04-17 22:25:44,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:44" (1/1) ... [2020-04-17 22:25:44,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:44" (1/1) ... [2020-04-17 22:25:44,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:44" (1/1) ... [2020-04-17 22:25:44,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:44" (1/1) ... [2020-04-17 22:25:44,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:44" (1/1) ... [2020-04-17 22:25:44,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:44" (1/1) ... [2020-04-17 22:25:44,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 22:25:44,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 22:25:44,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 22:25:44,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 22:25:44,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:44" (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 [2020-04-17 22:25:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 22:25:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 22:25:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 22:25:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 22:25:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 22:25:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 22:25:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 22:25:44,923 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 22:25:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-17 22:25:44,923 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-17 22:25:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 22:25:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 22:25:44,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 22:25:44,927 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 22:25:45,304 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 22:25:45,304 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 22:25:45,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:25:45 BoogieIcfgContainer [2020-04-17 22:25:45,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 22:25:45,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 22:25:45,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 22:25:45,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 22:25:45,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 10:25:43" (1/3) ... [2020-04-17 22:25:45,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57bdfb57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:25:45, skipping insertion in model container [2020-04-17 22:25:45,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:44" (2/3) ... [2020-04-17 22:25:45,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57bdfb57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:25:45, skipping insertion in model container [2020-04-17 22:25:45,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:25:45" (3/3) ... [2020-04-17 22:25:45,320 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_tso.oepc.i [2020-04-17 22:25:45,328 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 22:25:45,328 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 22:25:45,335 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 22:25:45,336 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 22:25:45,361 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,361 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,361 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,362 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,362 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,363 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,363 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,363 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,364 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,364 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,364 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,365 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,365 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,365 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,365 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,366 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,366 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,366 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,371 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,371 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,371 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,372 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,378 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,378 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,379 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,379 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,388 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,388 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,388 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,389 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:45,408 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-17 22:25:45,427 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 22:25:45,427 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 22:25:45,428 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 22:25:45,428 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 22:25:45,428 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 22:25:45,428 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 22:25:45,428 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 22:25:45,428 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 22:25:45,447 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-04-17 22:25:45,450 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-04-17 22:25:45,501 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-04-17 22:25:45,501 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:25:45,509 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-04-17 22:25:45,513 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-04-17 22:25:45,553 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-04-17 22:25:45,553 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:25:45,554 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-04-17 22:25:45,556 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-04-17 22:25:45,557 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 22:25:47,558 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2037 [2020-04-17 22:25:47,559 INFO L214 etLargeBlockEncoding]: Total number of compositions: 54 [2020-04-17 22:25:47,563 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-04-17 22:25:47,585 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-04-17 22:25:47,588 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-04-17 22:25:47,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-17 22:25:47,596 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:47,597 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:47,597 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:47,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:47,603 INFO L82 PathProgramCache]: Analyzing trace with hash 2007579917, now seen corresponding path program 1 times [2020-04-17 22:25:47,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:47,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106056960] [2020-04-17 22:25:47,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:47,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:47,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106056960] [2020-04-17 22:25:47,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:47,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 22:25:47,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166108194] [2020-04-17 22:25:47,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 22:25:47,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:47,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 22:25:47,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:25:47,901 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-04-17 22:25:47,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:47,960 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-04-17 22:25:47,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 22:25:47,962 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-17 22:25:47,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:47,978 INFO L225 Difference]: With dead ends: 214 [2020-04-17 22:25:47,978 INFO L226 Difference]: Without dead ends: 166 [2020-04-17 22:25:47,980 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:25:48,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-04-17 22:25:48,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-04-17 22:25:48,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-04-17 22:25:48,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-04-17 22:25:48,044 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-04-17 22:25:48,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:48,045 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-04-17 22:25:48,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 22:25:48,046 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-04-17 22:25:48,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-17 22:25:48,047 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:48,047 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:48,047 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:48,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:48,048 INFO L82 PathProgramCache]: Analyzing trace with hash 2105434478, now seen corresponding path program 1 times [2020-04-17 22:25:48,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:48,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816599987] [2020-04-17 22:25:48,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:48,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:48,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:48,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816599987] [2020-04-17 22:25:48,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:48,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:25:48,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581904764] [2020-04-17 22:25:48,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:25:48,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:48,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:25:48,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:25:48,187 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-04-17 22:25:48,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:48,243 INFO L93 Difference]: Finished difference Result 202 states and 516 transitions. [2020-04-17 22:25:48,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:25:48,247 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-17 22:25:48,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:48,249 INFO L225 Difference]: With dead ends: 202 [2020-04-17 22:25:48,250 INFO L226 Difference]: Without dead ends: 130 [2020-04-17 22:25:48,251 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:48,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-04-17 22:25:48,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-04-17 22:25:48,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-04-17 22:25:48,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 322 transitions. [2020-04-17 22:25:48,277 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 322 transitions. Word has length 9 [2020-04-17 22:25:48,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:48,277 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 322 transitions. [2020-04-17 22:25:48,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:25:48,277 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-04-17 22:25:48,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-17 22:25:48,281 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:48,281 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:48,281 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:48,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:48,282 INFO L82 PathProgramCache]: Analyzing trace with hash 857303980, now seen corresponding path program 1 times [2020-04-17 22:25:48,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:48,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854611218] [2020-04-17 22:25:48,282 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:48,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:48,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854611218] [2020-04-17 22:25:48,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:48,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:25:48,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390367025] [2020-04-17 22:25:48,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:25:48,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:48,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:25:48,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:25:48,377 INFO L87 Difference]: Start difference. First operand 130 states and 322 transitions. Second operand 4 states. [2020-04-17 22:25:48,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:48,418 INFO L93 Difference]: Finished difference Result 148 states and 336 transitions. [2020-04-17 22:25:48,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:25:48,419 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-04-17 22:25:48,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:48,420 INFO L225 Difference]: With dead ends: 148 [2020-04-17 22:25:48,420 INFO L226 Difference]: Without dead ends: 112 [2020-04-17 22:25:48,421 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:48,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-04-17 22:25:48,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-04-17 22:25:48,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-04-17 22:25:48,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 253 transitions. [2020-04-17 22:25:48,429 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 253 transitions. Word has length 10 [2020-04-17 22:25:48,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:48,429 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 253 transitions. [2020-04-17 22:25:48,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:25:48,430 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 253 transitions. [2020-04-17 22:25:48,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-17 22:25:48,445 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:48,445 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:48,446 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:48,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:48,446 INFO L82 PathProgramCache]: Analyzing trace with hash 806230555, now seen corresponding path program 1 times [2020-04-17 22:25:48,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:48,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084175315] [2020-04-17 22:25:48,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:48,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:48,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084175315] [2020-04-17 22:25:48,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:48,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:25:48,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116261815] [2020-04-17 22:25:48,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:25:48,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:48,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:25:48,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:48,556 INFO L87 Difference]: Start difference. First operand 112 states and 253 transitions. Second operand 5 states. [2020-04-17 22:25:48,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:48,610 INFO L93 Difference]: Finished difference Result 109 states and 227 transitions. [2020-04-17 22:25:48,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 22:25:48,611 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-04-17 22:25:48,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:48,612 INFO L225 Difference]: With dead ends: 109 [2020-04-17 22:25:48,612 INFO L226 Difference]: Without dead ends: 85 [2020-04-17 22:25:48,613 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 22:25:48,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-04-17 22:25:48,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-04-17 22:25:48,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-04-17 22:25:48,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 173 transitions. [2020-04-17 22:25:48,618 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 173 transitions. Word has length 11 [2020-04-17 22:25:48,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:48,618 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 173 transitions. [2020-04-17 22:25:48,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:25:48,619 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-04-17 22:25:48,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-17 22:25:48,620 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:48,620 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:48,620 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:48,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:48,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1664906609, now seen corresponding path program 1 times [2020-04-17 22:25:48,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:48,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777734615] [2020-04-17 22:25:48,621 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:48,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:48,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777734615] [2020-04-17 22:25:48,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:48,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 22:25:48,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599289922] [2020-04-17 22:25:48,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-17 22:25:48,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:48,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-17 22:25:48,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 22:25:48,705 INFO L87 Difference]: Start difference. First operand 85 states and 173 transitions. Second operand 6 states. [2020-04-17 22:25:48,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:48,773 INFO L93 Difference]: Finished difference Result 80 states and 161 transitions. [2020-04-17 22:25:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-17 22:25:48,774 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-04-17 22:25:48,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:48,775 INFO L225 Difference]: With dead ends: 80 [2020-04-17 22:25:48,775 INFO L226 Difference]: Without dead ends: 72 [2020-04-17 22:25:48,776 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-04-17 22:25:48,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-04-17 22:25:48,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-04-17 22:25:48,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-04-17 22:25:48,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 147 transitions. [2020-04-17 22:25:48,781 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 147 transitions. Word has length 13 [2020-04-17 22:25:48,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:48,781 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 147 transitions. [2020-04-17 22:25:48,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-17 22:25:48,781 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2020-04-17 22:25:48,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-17 22:25:48,782 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:48,783 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:48,783 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:48,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:48,783 INFO L82 PathProgramCache]: Analyzing trace with hash 399497030, now seen corresponding path program 1 times [2020-04-17 22:25:48,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:48,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108381272] [2020-04-17 22:25:48,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:48,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:48,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108381272] [2020-04-17 22:25:48,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:48,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:25:48,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668939606] [2020-04-17 22:25:48,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:25:48,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:48,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:25:48,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:25:48,819 INFO L87 Difference]: Start difference. First operand 72 states and 147 transitions. Second operand 4 states. [2020-04-17 22:25:48,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:48,838 INFO L93 Difference]: Finished difference Result 97 states and 192 transitions. [2020-04-17 22:25:48,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:25:48,838 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-04-17 22:25:48,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:48,839 INFO L225 Difference]: With dead ends: 97 [2020-04-17 22:25:48,839 INFO L226 Difference]: Without dead ends: 48 [2020-04-17 22:25:48,839 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:48,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-04-17 22:25:48,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-04-17 22:25:48,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-04-17 22:25:48,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 85 transitions. [2020-04-17 22:25:48,842 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 85 transitions. Word has length 16 [2020-04-17 22:25:48,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:48,842 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 85 transitions. [2020-04-17 22:25:48,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:25:48,843 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2020-04-17 22:25:48,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-17 22:25:48,843 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:48,843 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:48,844 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:48,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:48,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1410540376, now seen corresponding path program 2 times [2020-04-17 22:25:48,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:48,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687627778] [2020-04-17 22:25:48,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:48,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:48,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687627778] [2020-04-17 22:25:48,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:48,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:25:48,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998182535] [2020-04-17 22:25:48,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:25:48,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:48,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:25:48,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:25:48,876 INFO L87 Difference]: Start difference. First operand 48 states and 85 transitions. Second operand 4 states. [2020-04-17 22:25:48,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:48,888 INFO L93 Difference]: Finished difference Result 47 states and 84 transitions. [2020-04-17 22:25:48,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:25:48,888 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-04-17 22:25:48,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:48,888 INFO L225 Difference]: With dead ends: 47 [2020-04-17 22:25:48,889 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 22:25:48,889 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:48,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 22:25:48,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 22:25:48,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 22:25:48,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 22:25:48,890 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-04-17 22:25:48,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:48,890 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 22:25:48,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:25:48,890 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 22:25:48,891 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 22:25:48,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 10:25:48 BasicIcfg [2020-04-17 22:25:48,895 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 22:25:48,897 INFO L168 Benchmark]: Toolchain (without parser) took 4910.28 ms. Allocated memory was 139.5 MB in the beginning and 245.4 MB in the end (delta: 105.9 MB). Free memory was 101.6 MB in the beginning and 159.9 MB in the end (delta: -58.3 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:48,898 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.4 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-04-17 22:25:48,899 INFO L168 Benchmark]: CACSL2BoogieTranslator took 768.40 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 99.6 MB in the beginning and 160.8 MB in the end (delta: -61.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:48,900 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.79 ms. Allocated memory is still 203.9 MB. Free memory was 160.8 MB in the beginning and 158.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:48,901 INFO L168 Benchmark]: Boogie Preprocessor took 27.31 ms. Allocated memory is still 203.9 MB. Free memory was 158.7 MB in the beginning and 156.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:48,902 INFO L168 Benchmark]: RCFGBuilder took 461.11 ms. Allocated memory is still 203.9 MB. Free memory was 156.7 MB in the beginning and 135.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:48,903 INFO L168 Benchmark]: TraceAbstraction took 3581.36 ms. Allocated memory was 203.9 MB in the beginning and 245.4 MB in the end (delta: 41.4 MB). Free memory was 134.6 MB in the beginning and 159.9 MB in the end (delta: -25.3 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:48,906 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.4 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 768.40 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 99.6 MB in the beginning and 160.8 MB in the end (delta: -61.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.79 ms. Allocated memory is still 203.9 MB. Free memory was 160.8 MB in the beginning and 158.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.31 ms. Allocated memory is still 203.9 MB. Free memory was 158.7 MB in the beginning and 156.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 461.11 ms. Allocated memory is still 203.9 MB. Free memory was 156.7 MB in the beginning and 135.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3581.36 ms. Allocated memory was 203.9 MB in the beginning and 245.4 MB in the end (delta: 41.4 MB). Free memory was 134.6 MB in the beginning and 159.9 MB in the end (delta: -25.3 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.1s, 77 ProgramPointsBefore, 30 ProgramPointsAfterwards, 69 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 644 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 38 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2037 CheckedPairsTotal, 54 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 124 SDtfs, 130 SDslu, 169 SDs, 0 SdLazy, 101 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 2534 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...