/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-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 07:14:31,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 07:14:31,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 07:14:31,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 07:14:31,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 07:14:31,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 07:14:31,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 07:14:31,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 07:14:31,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 07:14:31,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 07:14:31,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 07:14:31,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 07:14:31,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 07:14:31,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 07:14:31,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 07:14:31,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 07:14:31,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 07:14:31,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 07:14:31,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 07:14:31,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 07:14:31,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 07:14:31,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 07:14:31,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 07:14:31,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 07:14:31,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 07:14:31,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 07:14:31,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 07:14:31,572 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 07:14:31,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 07:14:31,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 07:14:31,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 07:14:31,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 07:14:31,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 07:14:31,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 07:14:31,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 07:14:31,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 07:14:31,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 07:14:31,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 07:14:31,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 07:14:31,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 07:14:31,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 07:14:31,583 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2020-04-18 07:14:31,605 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 07:14:31,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 07:14:31,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 07:14:31,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 07:14:31,607 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 07:14:31,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 07:14:31,607 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 07:14:31,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 07:14:31,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 07:14:31,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 07:14:31,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 07:14:31,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 07:14:31,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 07:14:31,609 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 07:14:31,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 07:14:31,609 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 07:14:31,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 07:14:31,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 07:14:31,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 07:14:31,610 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 07:14:31,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 07:14:31,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 07:14:31,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 07:14:31,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 07:14:31,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 07:14:31,611 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 07:14:31,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 07:14:31,612 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 07:14:31,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 07:14:31,612 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 07:14:31,889 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 07:14:31,909 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 07:14:31,913 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 07:14:31,914 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 07:14:31,915 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 07:14:31,916 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-04-18 07:14:31,991 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b891ebfd/5c051440e1de4fb5a718db5cff3567ed/FLAG840e88a5d [2020-04-18 07:14:32,632 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 07:14:32,633 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-04-18 07:14:32,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b891ebfd/5c051440e1de4fb5a718db5cff3567ed/FLAG840e88a5d [2020-04-18 07:14:32,823 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b891ebfd/5c051440e1de4fb5a718db5cff3567ed [2020-04-18 07:14:32,834 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 07:14:32,856 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 07:14:32,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 07:14:32,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 07:14:32,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 07:14:32,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:14:32" (1/1) ... [2020-04-18 07:14:32,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22774f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:32, skipping insertion in model container [2020-04-18 07:14:32,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:14:32" (1/1) ... [2020-04-18 07:14:32,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 07:14:32,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 07:14:33,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:14:33,436 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 07:14:33,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:14:33,599 INFO L208 MainTranslator]: Completed translation [2020-04-18 07:14:33,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:33 WrapperNode [2020-04-18 07:14:33,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 07:14:33,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 07:14:33,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 07:14:33,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 07:14:33,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:33" (1/1) ... [2020-04-18 07:14:33,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:33" (1/1) ... [2020-04-18 07:14:33,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 07:14:33,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 07:14:33,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 07:14:33,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 07:14:33,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:33" (1/1) ... [2020-04-18 07:14:33,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:33" (1/1) ... [2020-04-18 07:14:33,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:33" (1/1) ... [2020-04-18 07:14:33,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:33" (1/1) ... [2020-04-18 07:14:33,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:33" (1/1) ... [2020-04-18 07:14:33,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:33" (1/1) ... [2020-04-18 07:14:33,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:33" (1/1) ... [2020-04-18 07:14:33,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 07:14:33,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 07:14:33,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 07:14:33,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 07:14:33,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:33" (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 [2020-04-18 07:14:33,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 07:14:33,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 07:14:33,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 07:14:33,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 07:14:33,773 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 07:14:33,773 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 07:14:33,773 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 07:14:33,773 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 07:14:33,774 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 07:14:33,774 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 07:14:33,774 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-04-18 07:14:33,774 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-04-18 07:14:33,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 07:14:33,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 07:14:33,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 07:14:33,776 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 07:14:34,231 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 07:14:34,231 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 07:14:34,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:14:34 BoogieIcfgContainer [2020-04-18 07:14:34,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 07:14:34,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 07:14:34,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 07:14:34,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 07:14:34,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:14:32" (1/3) ... [2020-04-18 07:14:34,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1b9a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:14:34, skipping insertion in model container [2020-04-18 07:14:34,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:33" (2/3) ... [2020-04-18 07:14:34,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1b9a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:14:34, skipping insertion in model container [2020-04-18 07:14:34,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:14:34" (3/3) ... [2020-04-18 07:14:34,248 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2020-04-18 07:14:34,259 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 07:14:34,260 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 07:14:34,267 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 07:14:34,268 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 07:14:34,297 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,297 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,298 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,298 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,299 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,299 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,300 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,300 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,300 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,300 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,301 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,301 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,302 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,302 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,302 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,302 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,303 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,303 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,304 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,304 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,304 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,304 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,305 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,305 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,310 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,310 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,311 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,311 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,317 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,317 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,318 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,318 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,321 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,321 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,321 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,321 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,326 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,326 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,326 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,326 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:14:34,340 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-18 07:14:34,357 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 07:14:34,357 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 07:14:34,358 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 07:14:34,358 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 07:14:34,358 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 07:14:34,358 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 07:14:34,358 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 07:14:34,358 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 07:14:34,373 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 86 transitions, 192 flow [2020-04-18 07:14:44,537 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 64041 states. [2020-04-18 07:14:44,539 INFO L276 IsEmpty]: Start isEmpty. Operand 64041 states. [2020-04-18 07:14:44,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 07:14:44,623 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:14:44,624 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:14:44,625 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:14:44,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:14:44,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1376710148, now seen corresponding path program 1 times [2020-04-18 07:14:44,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:14:44,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910155606] [2020-04-18 07:14:44,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:14:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:14:45,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:14:45,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910155606] [2020-04-18 07:14:45,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:14:45,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:14:45,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305703824] [2020-04-18 07:14:45,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:14:45,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:14:45,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:14:45,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:14:45,256 INFO L87 Difference]: Start difference. First operand 64041 states. Second operand 7 states. [2020-04-18 07:14:48,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:14:48,787 INFO L93 Difference]: Finished difference Result 90109 states and 391525 transitions. [2020-04-18 07:14:48,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 07:14:48,789 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2020-04-18 07:14:48,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:14:49,088 INFO L225 Difference]: With dead ends: 90109 [2020-04-18 07:14:49,089 INFO L226 Difference]: Without dead ends: 28712 [2020-04-18 07:14:49,094 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 07:14:49,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28712 states. [2020-04-18 07:14:50,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28712 to 28712. [2020-04-18 07:14:50,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28712 states. [2020-04-18 07:14:50,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28712 states to 28712 states and 122515 transitions. [2020-04-18 07:14:50,579 INFO L78 Accepts]: Start accepts. Automaton has 28712 states and 122515 transitions. Word has length 43 [2020-04-18 07:14:50,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:14:50,581 INFO L479 AbstractCegarLoop]: Abstraction has 28712 states and 122515 transitions. [2020-04-18 07:14:50,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:14:50,581 INFO L276 IsEmpty]: Start isEmpty. Operand 28712 states and 122515 transitions. [2020-04-18 07:14:51,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 07:14:51,026 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:14:51,027 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:14:51,028 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:14:51,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:14:51,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1523533381, now seen corresponding path program 1 times [2020-04-18 07:14:51,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:14:51,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372317001] [2020-04-18 07:14:51,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:14:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:14:51,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:14:51,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372317001] [2020-04-18 07:14:51,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:14:51,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:14:51,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840019260] [2020-04-18 07:14:51,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:14:51,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:14:51,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:14:51,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:14:51,278 INFO L87 Difference]: Start difference. First operand 28712 states and 122515 transitions. Second operand 7 states. [2020-04-18 07:14:52,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:14:52,102 INFO L93 Difference]: Finished difference Result 54757 states and 231756 transitions. [2020-04-18 07:14:52,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-18 07:14:52,103 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-04-18 07:14:52,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:14:52,350 INFO L225 Difference]: With dead ends: 54757 [2020-04-18 07:14:52,351 INFO L226 Difference]: Without dead ends: 36822 [2020-04-18 07:14:52,352 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-04-18 07:14:52,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36822 states. [2020-04-18 07:14:55,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36822 to 36822. [2020-04-18 07:14:55,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36822 states. [2020-04-18 07:14:55,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36822 states to 36822 states and 156298 transitions. [2020-04-18 07:14:55,990 INFO L78 Accepts]: Start accepts. Automaton has 36822 states and 156298 transitions. Word has length 45 [2020-04-18 07:14:55,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:14:55,991 INFO L479 AbstractCegarLoop]: Abstraction has 36822 states and 156298 transitions. [2020-04-18 07:14:55,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:14:55,991 INFO L276 IsEmpty]: Start isEmpty. Operand 36822 states and 156298 transitions. [2020-04-18 07:14:56,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 07:14:56,050 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:14:56,051 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:14:56,051 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:14:56,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:14:56,052 INFO L82 PathProgramCache]: Analyzing trace with hash 944695778, now seen corresponding path program 1 times [2020-04-18 07:14:56,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:14:56,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544342441] [2020-04-18 07:14:56,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:14:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:14:56,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:14:56,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544342441] [2020-04-18 07:14:56,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:14:56,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:14:56,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389524235] [2020-04-18 07:14:56,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:14:56,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:14:56,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:14:56,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:14:56,240 INFO L87 Difference]: Start difference. First operand 36822 states and 156298 transitions. Second operand 7 states. [2020-04-18 07:14:56,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:14:56,658 INFO L93 Difference]: Finished difference Result 40422 states and 170433 transitions. [2020-04-18 07:14:56,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 07:14:56,658 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2020-04-18 07:14:56,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:14:56,778 INFO L225 Difference]: With dead ends: 40422 [2020-04-18 07:14:56,779 INFO L226 Difference]: Without dead ends: 34122 [2020-04-18 07:14:56,779 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 07:14:57,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34122 states. [2020-04-18 07:14:58,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34122 to 30672. [2020-04-18 07:14:58,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30672 states. [2020-04-18 07:14:58,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30672 states to 30672 states and 129508 transitions. [2020-04-18 07:14:58,230 INFO L78 Accepts]: Start accepts. Automaton has 30672 states and 129508 transitions. Word has length 47 [2020-04-18 07:14:58,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:14:58,230 INFO L479 AbstractCegarLoop]: Abstraction has 30672 states and 129508 transitions. [2020-04-18 07:14:58,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:14:58,231 INFO L276 IsEmpty]: Start isEmpty. Operand 30672 states and 129508 transitions. [2020-04-18 07:14:58,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 07:14:58,273 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:14:58,274 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:14:58,274 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:14:58,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:14:58,274 INFO L82 PathProgramCache]: Analyzing trace with hash -151681786, now seen corresponding path program 1 times [2020-04-18 07:14:58,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:14:58,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390746769] [2020-04-18 07:14:58,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:14:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:14:58,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:14:58,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390746769] [2020-04-18 07:14:58,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:14:58,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:14:58,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552449011] [2020-04-18 07:14:58,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:14:58,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:14:58,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:14:58,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:14:58,447 INFO L87 Difference]: Start difference. First operand 30672 states and 129508 transitions. Second operand 7 states. [2020-04-18 07:14:58,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:14:58,779 INFO L93 Difference]: Finished difference Result 33472 states and 140413 transitions. [2020-04-18 07:14:58,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 07:14:58,780 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2020-04-18 07:14:58,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:14:58,856 INFO L225 Difference]: With dead ends: 33472 [2020-04-18 07:14:58,856 INFO L226 Difference]: Without dead ends: 28572 [2020-04-18 07:14:58,856 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 07:14:59,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28572 states. [2020-04-18 07:15:01,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28572 to 25922. [2020-04-18 07:15:01,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25922 states. [2020-04-18 07:15:01,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25922 states to 25922 states and 108858 transitions. [2020-04-18 07:15:01,684 INFO L78 Accepts]: Start accepts. Automaton has 25922 states and 108858 transitions. Word has length 47 [2020-04-18 07:15:01,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:15:01,684 INFO L479 AbstractCegarLoop]: Abstraction has 25922 states and 108858 transitions. [2020-04-18 07:15:01,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:15:01,685 INFO L276 IsEmpty]: Start isEmpty. Operand 25922 states and 108858 transitions. [2020-04-18 07:15:01,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-04-18 07:15:01,721 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:15:01,722 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:15:01,722 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:15:01,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:15:01,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1583639609, now seen corresponding path program 1 times [2020-04-18 07:15:01,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:15:01,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424923904] [2020-04-18 07:15:01,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:15:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:15:01,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:15:01,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424923904] [2020-04-18 07:15:01,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:15:01,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 07:15:01,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681334253] [2020-04-18 07:15:01,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 07:15:01,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:15:01,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 07:15:01,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-04-18 07:15:01,852 INFO L87 Difference]: Start difference. First operand 25922 states and 108858 transitions. Second operand 8 states. [2020-04-18 07:15:02,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:15:02,210 INFO L93 Difference]: Finished difference Result 35872 states and 149463 transitions. [2020-04-18 07:15:02,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:15:02,210 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2020-04-18 07:15:02,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:15:02,251 INFO L225 Difference]: With dead ends: 35872 [2020-04-18 07:15:02,252 INFO L226 Difference]: Without dead ends: 16997 [2020-04-18 07:15:02,252 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:15:02,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16997 states. [2020-04-18 07:15:02,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16997 to 16997. [2020-04-18 07:15:02,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16997 states. [2020-04-18 07:15:02,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16997 states to 16997 states and 69883 transitions. [2020-04-18 07:15:02,656 INFO L78 Accepts]: Start accepts. Automaton has 16997 states and 69883 transitions. Word has length 49 [2020-04-18 07:15:02,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:15:02,657 INFO L479 AbstractCegarLoop]: Abstraction has 16997 states and 69883 transitions. [2020-04-18 07:15:02,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 07:15:02,657 INFO L276 IsEmpty]: Start isEmpty. Operand 16997 states and 69883 transitions. [2020-04-18 07:15:02,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-04-18 07:15:02,678 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:15:02,678 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:15:02,678 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:15:02,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:15:02,679 INFO L82 PathProgramCache]: Analyzing trace with hash -138688327, now seen corresponding path program 1 times [2020-04-18 07:15:02,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:15:02,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384747790] [2020-04-18 07:15:02,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:15:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:15:02,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:15:02,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384747790] [2020-04-18 07:15:02,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:15:02,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:15:02,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966143481] [2020-04-18 07:15:02,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:15:02,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:15:02,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:15:02,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:15:02,819 INFO L87 Difference]: Start difference. First operand 16997 states and 69883 transitions. Second operand 7 states. [2020-04-18 07:15:03,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:15:03,801 INFO L93 Difference]: Finished difference Result 30447 states and 124513 transitions. [2020-04-18 07:15:03,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-18 07:15:03,802 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2020-04-18 07:15:03,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:15:03,860 INFO L225 Difference]: With dead ends: 30447 [2020-04-18 07:15:03,861 INFO L226 Difference]: Without dead ends: 22147 [2020-04-18 07:15:03,861 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-04-18 07:15:03,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22147 states. [2020-04-18 07:15:04,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22147 to 18797. [2020-04-18 07:15:04,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18797 states. [2020-04-18 07:15:04,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18797 states to 18797 states and 76973 transitions. [2020-04-18 07:15:04,259 INFO L78 Accepts]: Start accepts. Automaton has 18797 states and 76973 transitions. Word has length 50 [2020-04-18 07:15:04,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:15:04,260 INFO L479 AbstractCegarLoop]: Abstraction has 18797 states and 76973 transitions. [2020-04-18 07:15:04,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:15:04,260 INFO L276 IsEmpty]: Start isEmpty. Operand 18797 states and 76973 transitions. [2020-04-18 07:15:04,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-04-18 07:15:04,284 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:15:04,284 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:15:04,285 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:15:04,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:15:04,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1427230111, now seen corresponding path program 2 times [2020-04-18 07:15:04,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:15:04,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923526812] [2020-04-18 07:15:04,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:15:04,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:15:04,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:15:04,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923526812] [2020-04-18 07:15:04,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:15:04,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:15:04,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955286297] [2020-04-18 07:15:04,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:15:04,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:15:04,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:15:04,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:15:04,410 INFO L87 Difference]: Start difference. First operand 18797 states and 76973 transitions. Second operand 7 states. [2020-04-18 07:15:04,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:15:04,673 INFO L93 Difference]: Finished difference Result 20397 states and 83033 transitions. [2020-04-18 07:15:04,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 07:15:04,673 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2020-04-18 07:15:04,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:15:04,737 INFO L225 Difference]: With dead ends: 20397 [2020-04-18 07:15:04,738 INFO L226 Difference]: Without dead ends: 17597 [2020-04-18 07:15:04,738 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 07:15:04,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17597 states. [2020-04-18 07:15:05,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17597 to 15797. [2020-04-18 07:15:05,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15797 states. [2020-04-18 07:15:05,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15797 states to 15797 states and 64523 transitions. [2020-04-18 07:15:05,132 INFO L78 Accepts]: Start accepts. Automaton has 15797 states and 64523 transitions. Word has length 50 [2020-04-18 07:15:05,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:15:05,132 INFO L479 AbstractCegarLoop]: Abstraction has 15797 states and 64523 transitions. [2020-04-18 07:15:05,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:15:05,133 INFO L276 IsEmpty]: Start isEmpty. Operand 15797 states and 64523 transitions. [2020-04-18 07:15:05,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-04-18 07:15:05,157 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:15:05,157 INFO L425 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] [2020-04-18 07:15:05,157 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:15:05,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:15:05,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1934291992, now seen corresponding path program 1 times [2020-04-18 07:15:05,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:15:05,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567141836] [2020-04-18 07:15:05,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:15:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:15:05,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:15:05,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567141836] [2020-04-18 07:15:05,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:15:05,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:15:05,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034447408] [2020-04-18 07:15:05,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:15:05,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:15:05,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:15:05,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:15:05,298 INFO L87 Difference]: Start difference. First operand 15797 states and 64523 transitions. Second operand 7 states. [2020-04-18 07:15:05,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:15:05,986 INFO L93 Difference]: Finished difference Result 25847 states and 105693 transitions. [2020-04-18 07:15:05,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:15:05,987 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2020-04-18 07:15:05,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:15:06,065 INFO L225 Difference]: With dead ends: 25847 [2020-04-18 07:15:06,066 INFO L226 Difference]: Without dead ends: 20347 [2020-04-18 07:15:06,066 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-04-18 07:15:06,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20347 states. [2020-04-18 07:15:06,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20347 to 15797. [2020-04-18 07:15:06,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15797 states. [2020-04-18 07:15:06,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15797 states to 15797 states and 64383 transitions. [2020-04-18 07:15:06,456 INFO L78 Accepts]: Start accepts. Automaton has 15797 states and 64383 transitions. Word has length 52 [2020-04-18 07:15:06,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:15:06,457 INFO L479 AbstractCegarLoop]: Abstraction has 15797 states and 64383 transitions. [2020-04-18 07:15:06,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:15:06,457 INFO L276 IsEmpty]: Start isEmpty. Operand 15797 states and 64383 transitions. [2020-04-18 07:15:06,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-04-18 07:15:06,488 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:15:06,488 INFO L425 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] [2020-04-18 07:15:06,488 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:15:06,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:15:06,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1540441346, now seen corresponding path program 2 times [2020-04-18 07:15:06,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:15:06,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218153696] [2020-04-18 07:15:06,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:15:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:15:06,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:15:06,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218153696] [2020-04-18 07:15:06,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:15:06,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 07:15:06,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713447665] [2020-04-18 07:15:06,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 07:15:06,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:15:06,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 07:15:06,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-04-18 07:15:06,637 INFO L87 Difference]: Start difference. First operand 15797 states and 64383 transitions. Second operand 8 states. [2020-04-18 07:15:06,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:15:06,908 INFO L93 Difference]: Finished difference Result 21437 states and 86753 transitions. [2020-04-18 07:15:06,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:15:06,909 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-04-18 07:15:06,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:15:06,947 INFO L225 Difference]: With dead ends: 21437 [2020-04-18 07:15:06,947 INFO L226 Difference]: Without dead ends: 10427 [2020-04-18 07:15:06,947 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:15:06,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10427 states. [2020-04-18 07:15:07,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10427 to 10427. [2020-04-18 07:15:07,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10427 states. [2020-04-18 07:15:07,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10427 states to 10427 states and 41301 transitions. [2020-04-18 07:15:07,163 INFO L78 Accepts]: Start accepts. Automaton has 10427 states and 41301 transitions. Word has length 52 [2020-04-18 07:15:07,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:15:07,163 INFO L479 AbstractCegarLoop]: Abstraction has 10427 states and 41301 transitions. [2020-04-18 07:15:07,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 07:15:07,163 INFO L276 IsEmpty]: Start isEmpty. Operand 10427 states and 41301 transitions. [2020-04-18 07:15:07,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-04-18 07:15:07,179 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:15:07,179 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:15:07,179 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:15:07,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:15:07,180 INFO L82 PathProgramCache]: Analyzing trace with hash -202197398, now seen corresponding path program 1 times [2020-04-18 07:15:07,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:15:07,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971523354] [2020-04-18 07:15:07,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:15:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:15:07,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:15:07,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971523354] [2020-04-18 07:15:07,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:15:07,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 07:15:07,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963085958] [2020-04-18 07:15:07,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 07:15:07,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:15:07,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 07:15:07,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-04-18 07:15:07,304 INFO L87 Difference]: Start difference. First operand 10427 states and 41301 transitions. Second operand 8 states. [2020-04-18 07:15:07,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:15:07,537 INFO L93 Difference]: Finished difference Result 15467 states and 61225 transitions. [2020-04-18 07:15:07,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 07:15:07,538 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-04-18 07:15:07,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:15:07,552 INFO L225 Difference]: With dead ends: 15467 [2020-04-18 07:15:07,553 INFO L226 Difference]: Without dead ends: 6307 [2020-04-18 07:15:07,553 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:15:07,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6307 states. [2020-04-18 07:15:07,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6307 to 6307. [2020-04-18 07:15:07,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6307 states. [2020-04-18 07:15:07,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6307 states to 6307 states and 24719 transitions. [2020-04-18 07:15:07,668 INFO L78 Accepts]: Start accepts. Automaton has 6307 states and 24719 transitions. Word has length 53 [2020-04-18 07:15:07,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:15:07,668 INFO L479 AbstractCegarLoop]: Abstraction has 6307 states and 24719 transitions. [2020-04-18 07:15:07,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 07:15:07,668 INFO L276 IsEmpty]: Start isEmpty. Operand 6307 states and 24719 transitions. [2020-04-18 07:15:07,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-04-18 07:15:07,676 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:15:07,676 INFO L425 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] [2020-04-18 07:15:07,676 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:15:07,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:15:07,676 INFO L82 PathProgramCache]: Analyzing trace with hash -306071538, now seen corresponding path program 1 times [2020-04-18 07:15:07,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:15:07,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657689437] [2020-04-18 07:15:07,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:15:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:15:07,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:15:07,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657689437] [2020-04-18 07:15:07,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:15:07,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:15:07,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834911382] [2020-04-18 07:15:07,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:15:07,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:15:07,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:15:07,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:15:07,763 INFO L87 Difference]: Start difference. First operand 6307 states and 24719 transitions. Second operand 7 states. [2020-04-18 07:15:07,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:15:07,927 INFO L93 Difference]: Finished difference Result 5667 states and 22127 transitions. [2020-04-18 07:15:07,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 07:15:07,928 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 54 [2020-04-18 07:15:07,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:15:07,928 INFO L225 Difference]: With dead ends: 5667 [2020-04-18 07:15:07,928 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 07:15:07,929 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-04-18 07:15:07,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 07:15:07,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 07:15:07,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 07:15:07,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 07:15:07,929 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2020-04-18 07:15:07,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:15:07,929 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 07:15:07,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:15:07,929 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 07:15:07,930 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:15:07,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:15:07 BasicIcfg [2020-04-18 07:15:07,935 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 07:15:07,937 INFO L168 Benchmark]: Toolchain (without parser) took 35099.92 ms. Allocated memory was 142.1 MB in the beginning and 1.9 GB in the end (delta: 1.8 GB). Free memory was 99.5 MB in the beginning and 419.6 MB in the end (delta: -320.0 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2020-04-18 07:15:07,938 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 142.1 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 07:15:07,938 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.32 ms. Allocated memory was 142.1 MB in the beginning and 200.8 MB in the end (delta: 58.7 MB). Free memory was 97.5 MB in the beginning and 154.8 MB in the end (delta: -57.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-04-18 07:15:07,939 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.70 ms. Allocated memory is still 200.8 MB. Free memory was 154.8 MB in the beginning and 152.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-04-18 07:15:07,940 INFO L168 Benchmark]: Boogie Preprocessor took 33.89 ms. Allocated memory is still 200.8 MB. Free memory was 152.6 MB in the beginning and 151.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 07:15:07,941 INFO L168 Benchmark]: RCFGBuilder took 540.81 ms. Allocated memory is still 200.8 MB. Free memory was 151.1 MB in the beginning and 126.3 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-04-18 07:15:07,941 INFO L168 Benchmark]: TraceAbstraction took 33697.39 ms. Allocated memory was 200.8 MB in the beginning and 1.9 GB in the end (delta: 1.7 GB). Free memory was 125.6 MB in the beginning and 419.6 MB in the end (delta: -293.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2020-04-18 07:15:07,951 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 142.1 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 742.32 ms. Allocated memory was 142.1 MB in the beginning and 200.8 MB in the end (delta: 58.7 MB). Free memory was 97.5 MB in the beginning and 154.8 MB in the end (delta: -57.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 60.70 ms. Allocated memory is still 200.8 MB. Free memory was 154.8 MB in the beginning and 152.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.89 ms. Allocated memory is still 200.8 MB. Free memory was 152.6 MB in the beginning and 151.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 540.81 ms. Allocated memory is still 200.8 MB. Free memory was 151.1 MB in the beginning and 126.3 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 33697.39 ms. Allocated memory was 200.8 MB in the beginning and 1.9 GB in the end (delta: 1.7 GB). Free memory was 125.6 MB in the beginning and 419.6 MB in the end (delta: -293.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 33.5s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.1s, HoareTripleCheckerStatistics: 1360 SDtfs, 2472 SDslu, 4527 SDs, 0 SdLazy, 350 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64041occurred 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: 11.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 15800 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 542 NumberOfCodeBlocks, 542 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 531 ConstructedInterpolants, 0 QuantifiedInterpolants, 149403 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...