/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:39:18,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:39:18,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:39:18,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:39:18,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:39:18,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:39:18,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:39:18,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:39:18,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:39:18,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:39:18,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:39:18,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:39:18,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:39:18,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:39:18,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:39:18,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:39:18,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:39:18,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:39:18,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:39:18,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:39:18,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:39:18,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:39:18,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:39:18,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:39:18,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 15:39:18,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:39:18,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:39:18,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:39:18,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:39:18,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:39:18,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:39:18,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:39:18,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:39:18,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:39:18,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:39:18,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:39:18,576 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-11-09 15:39:18,652 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:39:18,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:39:18,657 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:39:18,657 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:39:18,657 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:39:18,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:39:18,658 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:39:18,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:39:18,658 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:39:18,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:39:18,660 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:39:18,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:39:18,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:39:18,660 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:39:18,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:39:18,661 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:39:18,661 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:39:18,661 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:39:18,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:39:18,662 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:39:18,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:39:18,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:39:18,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:39:18,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:39:18,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:39:18,663 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:39:18,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:39:18,664 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:39:18,664 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:39:18,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:39:18,664 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:39:19,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:39:19,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:39:19,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:39:19,115 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:39:19,116 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:39:19,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2020-11-09 15:39:19,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82afa6b52/fac824d0d6584b0d8e5bbd7da4c4ec64/FLAGb9b4a9868 [2020-11-09 15:39:19,964 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:39:19,965 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2020-11-09 15:39:19,993 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82afa6b52/fac824d0d6584b0d8e5bbd7da4c4ec64/FLAGb9b4a9868 [2020-11-09 15:39:20,202 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82afa6b52/fac824d0d6584b0d8e5bbd7da4c4ec64 [2020-11-09 15:39:20,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:39:20,216 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:39:20,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:39:20,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:39:20,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:39:20,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:39:20" (1/1) ... [2020-11-09 15:39:20,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac99af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:20, skipping insertion in model container [2020-11-09 15:39:20,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:39:20" (1/1) ... [2020-11-09 15:39:20,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:39:20,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:39:20,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:39:20,787 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:39:20,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:39:21,048 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:39:21,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:21 WrapperNode [2020-11-09 15:39:21,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:39:21,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:39:21,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:39:21,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:39:21,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:21" (1/1) ... [2020-11-09 15:39:21,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:21" (1/1) ... [2020-11-09 15:39:21,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:39:21,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:39:21,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:39:21,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:39:21,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:21" (1/1) ... [2020-11-09 15:39:21,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:21" (1/1) ... [2020-11-09 15:39:21,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:21" (1/1) ... [2020-11-09 15:39:21,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:21" (1/1) ... [2020-11-09 15:39:21,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:21" (1/1) ... [2020-11-09 15:39:21,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:21" (1/1) ... [2020-11-09 15:39:21,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:21" (1/1) ... [2020-11-09 15:39:21,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:39:21,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:39:21,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:39:21,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:39:21,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:21" (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 [2020-11-09 15:39:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:39:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 15:39:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:39:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:39:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 15:39:21,302 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 15:39:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 15:39:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 15:39:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 15:39:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 15:39:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-09 15:39:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-09 15:39:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:39:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 15:39:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:39:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:39:21,306 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 15:39:21,762 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:39:21,763 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 15:39:21,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:39:21 BoogieIcfgContainer [2020-11-09 15:39:21,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:39:21,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:39:21,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:39:21,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:39:21,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:39:20" (1/3) ... [2020-11-09 15:39:21,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db4449a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:39:21, skipping insertion in model container [2020-11-09 15:39:21,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:39:21" (2/3) ... [2020-11-09 15:39:21,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db4449a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:39:21, skipping insertion in model container [2020-11-09 15:39:21,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:39:21" (3/3) ... [2020-11-09 15:39:21,778 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.oepc.i [2020-11-09 15:39:21,801 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:39:21,801 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:39:21,805 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 15:39:21,806 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:39:21,838 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,839 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,839 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,839 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,840 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,840 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,840 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,840 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,841 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,841 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,841 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,841 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,842 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,842 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,842 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,842 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,843 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,843 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,843 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,843 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,844 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,844 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,844 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,844 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,845 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,845 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,845 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,845 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,846 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,846 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,846 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,846 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,847 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,847 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,848 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,848 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,848 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,848 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,849 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,849 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,849 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,849 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,850 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,850 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,850 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,850 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,851 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,851 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,853 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,854 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,854 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,854 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,862 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,862 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,862 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,863 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,865 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,865 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,866 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,866 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,868 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,869 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:39:21,871 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:39:21,883 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-09 15:39:21,907 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:39:21,908 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:39:21,908 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:39:21,908 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:39:21,908 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:39:21,908 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:39:21,908 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:39:21,909 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:39:21,922 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:39:21,923 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 90 transitions, 200 flow [2020-11-09 15:39:21,927 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 90 transitions, 200 flow [2020-11-09 15:39:21,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 90 transitions, 200 flow [2020-11-09 15:39:21,991 INFO L129 PetriNetUnfolder]: 3/86 cut-off events. [2020-11-09 15:39:21,992 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 15:39:22,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 3/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-11-09 15:39:22,008 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-11-09 15:39:23,181 WARN L194 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-11-09 15:39:25,028 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-11-09 15:39:25,222 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-11-09 15:39:25,701 WARN L194 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 30 [2020-11-09 15:39:26,462 WARN L194 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 15:39:26,570 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:39:26,812 WARN L194 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 15:39:26,918 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:39:27,344 WARN L194 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-11-09 15:39:27,425 INFO L131 LiptonReduction]: Checked pairs total: 4371 [2020-11-09 15:39:27,426 INFO L133 LiptonReduction]: Total number of compositions: 85 [2020-11-09 15:39:27,433 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-11-09 15:39:27,492 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-11-09 15:39:27,494 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-11-09 15:39:27,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 15:39:27,505 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:27,506 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:27,506 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:27,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:27,513 INFO L82 PathProgramCache]: Analyzing trace with hash -849468874, now seen corresponding path program 1 times [2020-11-09 15:39:27,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:27,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428379972] [2020-11-09 15:39:27,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:27,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:27,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428379972] [2020-11-09 15:39:27,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:27,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:39:27,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [476463206] [2020-11-09 15:39:27,842 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:27,848 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:27,872 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-11-09 15:39:27,872 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:27,879 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:39:27,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:39:27,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:27,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:39:27,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:39:27,900 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-11-09 15:39:27,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:27,978 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-11-09 15:39:27,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:39:27,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-09 15:39:27,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:28,008 INFO L225 Difference]: With dead ends: 670 [2020-11-09 15:39:28,008 INFO L226 Difference]: Without dead ends: 526 [2020-11-09 15:39:28,009 INFO L677 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 [2020-11-09 15:39:28,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-11-09 15:39:28,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-11-09 15:39:28,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-11-09 15:39:28,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-11-09 15:39:28,119 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-11-09 15:39:28,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:28,120 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-11-09 15:39:28,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:39:28,120 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-11-09 15:39:28,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 15:39:28,123 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:28,123 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:28,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:39:28,124 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:28,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:28,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1548819894, now seen corresponding path program 1 times [2020-11-09 15:39:28,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:28,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859137924] [2020-11-09 15:39:28,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:28,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:28,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:28,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859137924] [2020-11-09 15:39:28,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:28,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:39:28,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [896957045] [2020-11-09 15:39:28,266 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:28,267 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:28,270 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-11-09 15:39:28,270 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:28,357 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:39:28,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:39:28,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:28,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:39:28,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:39:28,360 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-11-09 15:39:28,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:28,403 INFO L93 Difference]: Finished difference Result 724 states and 2331 transitions. [2020-11-09 15:39:28,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:39:28,404 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 15:39:28,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:28,413 INFO L225 Difference]: With dead ends: 724 [2020-11-09 15:39:28,413 INFO L226 Difference]: Without dead ends: 412 [2020-11-09 15:39:28,414 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:39:28,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-11-09 15:39:28,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2020-11-09 15:39:28,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-11-09 15:39:28,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1323 transitions. [2020-11-09 15:39:28,465 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1323 transitions. Word has length 11 [2020-11-09 15:39:28,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:28,465 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 1323 transitions. [2020-11-09 15:39:28,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:39:28,465 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1323 transitions. [2020-11-09 15:39:28,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 15:39:28,467 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:28,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:28,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:39:28,468 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:28,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:28,469 INFO L82 PathProgramCache]: Analyzing trace with hash -295858392, now seen corresponding path program 1 times [2020-11-09 15:39:28,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:28,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625905959] [2020-11-09 15:39:28,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:28,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:28,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625905959] [2020-11-09 15:39:28,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:28,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:39:28,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1449942372] [2020-11-09 15:39:28,525 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:28,527 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:28,529 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-11-09 15:39:28,530 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:28,538 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:39:28,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:39:28,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:28,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:39:28,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:39:28,540 INFO L87 Difference]: Start difference. First operand 412 states and 1323 transitions. Second operand 3 states. [2020-11-09 15:39:28,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:28,550 INFO L93 Difference]: Finished difference Result 394 states and 1254 transitions. [2020-11-09 15:39:28,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:39:28,550 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-09 15:39:28,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:28,554 INFO L225 Difference]: With dead ends: 394 [2020-11-09 15:39:28,554 INFO L226 Difference]: Without dead ends: 394 [2020-11-09 15:39:28,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:39:28,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-11-09 15:39:28,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-11-09 15:39:28,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-11-09 15:39:28,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1254 transitions. [2020-11-09 15:39:28,572 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1254 transitions. Word has length 12 [2020-11-09 15:39:28,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:28,573 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1254 transitions. [2020-11-09 15:39:28,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:39:28,573 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1254 transitions. [2020-11-09 15:39:28,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 15:39:28,575 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:28,575 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:28,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:39:28,576 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:28,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:28,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1042420885, now seen corresponding path program 1 times [2020-11-09 15:39:28,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:28,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585415823] [2020-11-09 15:39:28,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:28,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:28,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585415823] [2020-11-09 15:39:28,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:28,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:39:28,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [331084763] [2020-11-09 15:39:28,671 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:28,675 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:28,680 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 33 transitions. [2020-11-09 15:39:28,680 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:28,754 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:39:28,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:39:28,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:28,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:39:28,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:39:28,756 INFO L87 Difference]: Start difference. First operand 394 states and 1254 transitions. Second operand 4 states. [2020-11-09 15:39:28,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:28,783 INFO L93 Difference]: Finished difference Result 538 states and 1654 transitions. [2020-11-09 15:39:28,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:39:28,784 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-09 15:39:28,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:28,787 INFO L225 Difference]: With dead ends: 538 [2020-11-09 15:39:28,787 INFO L226 Difference]: Without dead ends: 286 [2020-11-09 15:39:28,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:39:28,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-11-09 15:39:28,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2020-11-09 15:39:28,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-11-09 15:39:28,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 851 transitions. [2020-11-09 15:39:28,799 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 851 transitions. Word has length 13 [2020-11-09 15:39:28,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:28,800 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 851 transitions. [2020-11-09 15:39:28,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:39:28,800 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 851 transitions. [2020-11-09 15:39:28,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 15:39:28,801 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:28,801 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:28,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:39:28,801 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:28,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:28,802 INFO L82 PathProgramCache]: Analyzing trace with hash -402598089, now seen corresponding path program 1 times [2020-11-09 15:39:28,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:28,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975442573] [2020-11-09 15:39:28,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:28,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:28,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975442573] [2020-11-09 15:39:28,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:28,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:39:28,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [283619202] [2020-11-09 15:39:28,895 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:28,897 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:28,904 INFO L252 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-11-09 15:39:28,905 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:28,919 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:28,945 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:28,976 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:29,011 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:29,027 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:29,047 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:29,068 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:29,087 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:29,160 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [7099#(not (= 4 ~__unbuffered_cnt~0))] [2020-11-09 15:39:29,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:39:29,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:29,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:39:29,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:39:29,162 INFO L87 Difference]: Start difference. First operand 286 states and 851 transitions. Second operand 5 states. [2020-11-09 15:39:29,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:29,234 INFO L93 Difference]: Finished difference Result 301 states and 817 transitions. [2020-11-09 15:39:29,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:39:29,235 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-09 15:39:29,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:29,237 INFO L225 Difference]: With dead ends: 301 [2020-11-09 15:39:29,237 INFO L226 Difference]: Without dead ends: 208 [2020-11-09 15:39:29,237 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:39:29,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-11-09 15:39:29,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2020-11-09 15:39:29,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-11-09 15:39:29,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 528 transitions. [2020-11-09 15:39:29,245 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 528 transitions. Word has length 14 [2020-11-09 15:39:29,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:29,246 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 528 transitions. [2020-11-09 15:39:29,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:39:29,246 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 528 transitions. [2020-11-09 15:39:29,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 15:39:29,247 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:29,247 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:29,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 15:39:29,248 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:29,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:29,248 INFO L82 PathProgramCache]: Analyzing trace with hash -2108608562, now seen corresponding path program 1 times [2020-11-09 15:39:29,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:29,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113460013] [2020-11-09 15:39:29,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:29,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:29,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113460013] [2020-11-09 15:39:29,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:29,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:39:29,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [873620935] [2020-11-09 15:39:29,364 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:29,368 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:29,377 INFO L252 McrAutomatonBuilder]: Finished intersection with 44 states and 76 transitions. [2020-11-09 15:39:29,377 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:29,394 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:29,469 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:29,497 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:39:29,631 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 3 new interpolants: [7827#(not (= 4 ~__unbuffered_cnt~0)), 7828#(not (= ~__unbuffered_cnt~0 3)), 7829#(not (= ~__unbuffered_cnt~0 2))] [2020-11-09 15:39:29,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-09 15:39:29,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:29,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-09 15:39:29,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-11-09 15:39:29,634 INFO L87 Difference]: Start difference. First operand 208 states and 528 transitions. Second operand 9 states. [2020-11-09 15:39:29,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:29,769 INFO L93 Difference]: Finished difference Result 185 states and 463 transitions. [2020-11-09 15:39:29,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-09 15:39:29,770 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-11-09 15:39:29,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:29,772 INFO L225 Difference]: With dead ends: 185 [2020-11-09 15:39:29,772 INFO L226 Difference]: Without dead ends: 147 [2020-11-09 15:39:29,772 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-11-09 15:39:29,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-11-09 15:39:29,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2020-11-09 15:39:29,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-11-09 15:39:29,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 362 transitions. [2020-11-09 15:39:29,783 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 362 transitions. Word has length 16 [2020-11-09 15:39:29,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:29,784 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 362 transitions. [2020-11-09 15:39:29,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-09 15:39:29,784 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 362 transitions. [2020-11-09 15:39:29,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 15:39:29,785 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:29,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:29,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 15:39:29,786 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:29,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:29,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1961572935, now seen corresponding path program 1 times [2020-11-09 15:39:29,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:29,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574626046] [2020-11-09 15:39:29,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:29,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:29,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574626046] [2020-11-09 15:39:29,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:29,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:39:29,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [905454257] [2020-11-09 15:39:29,875 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:29,880 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:29,895 INFO L252 McrAutomatonBuilder]: Finished intersection with 65 states and 114 transitions. [2020-11-09 15:39:29,896 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:29,919 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:39:29,920 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:39:29,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:29,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:39:29,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:39:29,921 INFO L87 Difference]: Start difference. First operand 147 states and 362 transitions. Second operand 4 states. [2020-11-09 15:39:29,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:29,947 INFO L93 Difference]: Finished difference Result 230 states and 541 transitions. [2020-11-09 15:39:29,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:39:29,948 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-09 15:39:29,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:29,948 INFO L225 Difference]: With dead ends: 230 [2020-11-09 15:39:29,949 INFO L226 Difference]: Without dead ends: 71 [2020-11-09 15:39:29,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:39:29,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-09 15:39:29,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-09 15:39:29,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-09 15:39:29,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-11-09 15:39:29,953 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 20 [2020-11-09 15:39:29,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:29,953 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-11-09 15:39:29,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:39:29,953 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-11-09 15:39:29,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 15:39:29,954 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:39:29,954 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:39:29,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 15:39:29,955 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:39:29,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:39:29,955 INFO L82 PathProgramCache]: Analyzing trace with hash 2013284665, now seen corresponding path program 2 times [2020-11-09 15:39:29,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:39:29,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711138110] [2020-11-09 15:39:29,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:39:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:39:30,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:39:30,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711138110] [2020-11-09 15:39:30,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:39:30,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:39:30,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [604404656] [2020-11-09 15:39:30,033 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:39:30,035 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:39:30,050 INFO L252 McrAutomatonBuilder]: Finished intersection with 66 states and 115 transitions. [2020-11-09 15:39:30,050 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:39:30,140 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:39:30,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:39:30,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:39:30,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:39:30,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:39:30,142 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-11-09 15:39:30,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:39:30,163 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-11-09 15:39:30,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:39:30,164 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-09 15:39:30,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:39:30,164 INFO L225 Difference]: With dead ends: 70 [2020-11-09 15:39:30,164 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 15:39:30,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:39:30,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 15:39:30,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 15:39:30,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 15:39:30,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 15:39:30,166 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-09 15:39:30,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:39:30,166 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 15:39:30,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:39:30,166 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 15:39:30,166 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 15:39:30,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 15:39:30,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:39:30 BasicIcfg [2020-11-09 15:39:30,171 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:39:30,172 INFO L168 Benchmark]: Toolchain (without parser) took 9963.56 ms. Allocated memory was 151.0 MB in the beginning and 243.3 MB in the end (delta: 92.3 MB). Free memory was 125.9 MB in the beginning and 87.3 MB in the end (delta: 38.6 MB). Peak memory consumption was 133.4 MB. Max. memory is 8.0 GB. [2020-11-09 15:39:30,173 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 151.0 MB. Free memory is still 125.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:39:30,174 INFO L168 Benchmark]: CACSL2BoogieTranslator took 830.58 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 127.5 MB in the end (delta: -2.1 MB). Peak memory consumption was 29.3 MB. Max. memory is 8.0 GB. [2020-11-09 15:39:30,175 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.45 ms. Allocated memory is still 151.0 MB. Free memory was 127.5 MB in the beginning and 125.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:39:30,175 INFO L168 Benchmark]: Boogie Preprocessor took 62.32 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 123.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:39:30,176 INFO L168 Benchmark]: RCFGBuilder took 551.00 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 99.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:39:30,177 INFO L168 Benchmark]: TraceAbstraction took 8403.79 ms. Allocated memory was 151.0 MB in the beginning and 243.3 MB in the end (delta: 92.3 MB). Free memory was 99.2 MB in the beginning and 87.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 104.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:39:30,181 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 151.0 MB. Free memory is still 125.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 830.58 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 127.5 MB in the end (delta: -2.1 MB). Peak memory consumption was 29.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 99.45 ms. Allocated memory is still 151.0 MB. Free memory was 127.5 MB in the beginning and 125.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 62.32 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 123.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 551.00 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 99.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8403.79 ms. Allocated memory was 151.0 MB in the beginning and 243.3 MB in the end (delta: 92.3 MB). Free memory was 99.2 MB in the beginning and 87.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 104.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1133 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 62 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.5s, 100 PlacesBefore, 38 PlacesAfterwards, 90 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 85 TotalNumberOfCompositions, 4371 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.2s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.5s, HoareTripleCheckerStatistics: 176 SDtfs, 160 SDslu, 275 SDs, 0 SdLazy, 133 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 106 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 4198 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...