/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 10:06:41,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 10:06:41,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 10:06:41,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 10:06:41,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 10:06:41,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 10:06:41,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 10:06:41,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 10:06:41,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 10:06:41,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 10:06:41,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 10:06:41,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 10:06:41,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 10:06:41,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 10:06:41,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 10:06:41,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 10:06:41,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 10:06:41,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 10:06:41,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 10:06:41,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 10:06:41,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 10:06:41,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 10:06:41,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 10:06:41,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 10:06:41,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-05 10:06:41,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-05 10:06:41,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-05 10:06:41,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-05 10:06:41,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-05 10:06:41,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-05 10:06:41,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-05 10:06:41,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-05 10:06:41,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-05 10:06:41,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-05 10:06:41,649 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-05 10:06:41,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-05 10:06:41,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-05 10:06:41,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-05 10:06:41,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 10:06:41,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 10:06:41,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 10:06:41,653 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-Separate.epf [2021-06-05 10:06:41,680 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 10:06:41,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 10:06:41,680 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 10:06:41,680 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 10:06:41,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 10:06:41,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 10:06:41,682 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 10:06:41,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 10:06:41,683 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 10:06:41,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 10:06:41,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 10:06:41,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 10:06:41,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 10:06:41,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 10:06:41,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 10:06:41,684 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 10:06:41,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 10:06:41,684 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 10:06:41,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 10:06:41,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 10:06:41,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 10:06:41,684 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 10:06:41,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 10:06:41,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:06:41,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 10:06:41,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 10:06:41,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 10:06:41,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 10:06:41,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 10:06:41,685 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 10:06:41,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 10:06:41,685 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 10:06:41,685 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 10:06:41,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 10:06:41,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 10:06:41,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 10:06:41,912 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 10:06:41,913 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 10:06:41,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2021-06-05 10:06:41,964 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d96fe36cc/942e061f0af148808ec5263459c7de81/FLAGc5dfbaaec [2021-06-05 10:06:42,357 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 10:06:42,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2021-06-05 10:06:42,367 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d96fe36cc/942e061f0af148808ec5263459c7de81/FLAGc5dfbaaec [2021-06-05 10:06:42,379 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d96fe36cc/942e061f0af148808ec5263459c7de81 [2021-06-05 10:06:42,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 10:06:42,382 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 10:06:42,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 10:06:42,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 10:06:42,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 10:06:42,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:06:42" (1/1) ... [2021-06-05 10:06:42,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36d6ee68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:42, skipping insertion in model container [2021-06-05 10:06:42,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:06:42" (1/1) ... [2021-06-05 10:06:42,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 10:06:42,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 10:06:42,606 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i[949,962] [2021-06-05 10:06:42,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:06:42,747 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 10:06:42,755 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i[949,962] [2021-06-05 10:06:42,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:06:42,834 INFO L208 MainTranslator]: Completed translation [2021-06-05 10:06:42,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:42 WrapperNode [2021-06-05 10:06:42,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 10:06:42,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 10:06:42,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 10:06:42,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 10:06:42,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:42" (1/1) ... [2021-06-05 10:06:42,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:42" (1/1) ... [2021-06-05 10:06:42,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 10:06:42,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 10:06:42,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 10:06:42,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 10:06:42,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:42" (1/1) ... [2021-06-05 10:06:42,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:42" (1/1) ... [2021-06-05 10:06:42,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:42" (1/1) ... [2021-06-05 10:06:42,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:42" (1/1) ... [2021-06-05 10:06:42,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:42" (1/1) ... [2021-06-05 10:06:42,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:42" (1/1) ... [2021-06-05 10:06:42,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:42" (1/1) ... [2021-06-05 10:06:42,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 10:06:42,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 10:06:42,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 10:06:42,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 10:06:42,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:06:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 10:06:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 10:06:42,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 10:06:42,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 10:06:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 10:06:42,979 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 10:06:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 10:06:42,979 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 10:06:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 10:06:42,979 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 10:06:42,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 10:06:42,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 10:06:42,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 10:06:42,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 10:06:42,984 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 10:06:43,305 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 10:06:43,305 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 10:06:43,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:06:43 BoogieIcfgContainer [2021-06-05 10:06:43,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 10:06:43,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 10:06:43,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 10:06:43,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 10:06:43,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 10:06:42" (1/3) ... [2021-06-05 10:06:43,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@175c0de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:06:43, skipping insertion in model container [2021-06-05 10:06:43,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:06:42" (2/3) ... [2021-06-05 10:06:43,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@175c0de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:06:43, skipping insertion in model container [2021-06-05 10:06:43,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:06:43" (3/3) ... [2021-06-05 10:06:43,311 INFO L111 eAbstractionObserver]: Analyzing ICFG safe013_tso.opt.i [2021-06-05 10:06:43,315 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 10:06:43,315 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 10:06:43,316 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 10:06:43,316 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 10:06:43,336 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,336 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,337 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,337 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,337 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,337 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,337 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,337 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,337 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,337 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,338 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,338 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,338 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,338 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,338 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,338 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,338 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,339 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,339 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,339 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,339 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,339 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,339 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,339 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,340 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,340 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,340 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,340 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,342 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,343 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,343 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,346 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,346 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,346 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,347 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,348 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,348 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,348 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,348 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:06:43,350 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:06:43,364 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 10:06:43,377 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:06:43,377 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:06:43,377 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:06:43,378 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:06:43,378 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:06:43,378 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:06:43,378 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:06:43,378 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:06:43,384 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-06-05 10:06:43,759 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:43,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:43,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-05 10:06:43,821 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:06:43,822 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:06:43,822 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:06:43,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:06:43,826 INFO L82 PathProgramCache]: Analyzing trace with hash 369061162, now seen corresponding path program 1 times [2021-06-05 10:06:43,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:06:43,831 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934294126] [2021-06-05 10:06:43,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:06:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:06:44,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:06:44,134 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:06:44,134 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934294126] [2021-06-05 10:06:44,135 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934294126] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:06:44,135 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:06:44,135 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:06:44,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781200345] [2021-06-05 10:06:44,139 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:06:44,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:06:44,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:06:44,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:06:44,173 INFO L87 Difference]: Start difference. First operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:44,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:06:44,485 INFO L93 Difference]: Finished difference Result 18803 states and 64756 transitions. [2021-06-05 10:06:44,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:06:44,486 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-06-05 10:06:44,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:06:44,526 INFO L225 Difference]: With dead ends: 18803 [2021-06-05 10:06:44,526 INFO L226 Difference]: Without dead ends: 6112 [2021-06-05 10:06:44,527 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 121.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:06:44,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6112 states. [2021-06-05 10:06:44,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6112 to 5272. [2021-06-05 10:06:44,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5272 states, 5271 states have (on average 3.358565737051793) internal successors, (17703), 5271 states have internal predecessors, (17703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:44,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5272 states to 5272 states and 17703 transitions. [2021-06-05 10:06:44,913 INFO L78 Accepts]: Start accepts. Automaton has 5272 states and 17703 transitions. Word has length 49 [2021-06-05 10:06:44,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:06:44,913 INFO L482 AbstractCegarLoop]: Abstraction has 5272 states and 17703 transitions. [2021-06-05 10:06:44,914 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:44,914 INFO L276 IsEmpty]: Start isEmpty. Operand 5272 states and 17703 transitions. [2021-06-05 10:06:44,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 10:06:44,921 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:06:44,921 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:06:44,922 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 10:06:44,922 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:06:44,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:06:44,922 INFO L82 PathProgramCache]: Analyzing trace with hash -48219191, now seen corresponding path program 1 times [2021-06-05 10:06:44,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:06:44,923 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304107685] [2021-06-05 10:06:44,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:06:44,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:06:45,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:06:45,026 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:06:45,026 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304107685] [2021-06-05 10:06:45,026 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304107685] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:06:45,026 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:06:45,027 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:06:45,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639048296] [2021-06-05 10:06:45,028 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:06:45,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:06:45,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:06:45,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:06:45,029 INFO L87 Difference]: Start difference. First operand 5272 states and 17703 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:45,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:06:45,180 INFO L93 Difference]: Finished difference Result 5832 states and 19436 transitions. [2021-06-05 10:06:45,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:06:45,180 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-05 10:06:45,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:06:45,201 INFO L225 Difference]: With dead ends: 5832 [2021-06-05 10:06:45,202 INFO L226 Difference]: Without dead ends: 4852 [2021-06-05 10:06:45,203 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 106.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:06:45,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4852 states. [2021-06-05 10:06:45,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4852 to 4852. [2021-06-05 10:06:45,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4852 states, 4851 states have (on average 3.3327149041434754) internal successors, (16167), 4851 states have internal predecessors, (16167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:45,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4852 states to 4852 states and 16167 transitions. [2021-06-05 10:06:45,350 INFO L78 Accepts]: Start accepts. Automaton has 4852 states and 16167 transitions. Word has length 51 [2021-06-05 10:06:45,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:06:45,350 INFO L482 AbstractCegarLoop]: Abstraction has 4852 states and 16167 transitions. [2021-06-05 10:06:45,350 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:45,350 INFO L276 IsEmpty]: Start isEmpty. Operand 4852 states and 16167 transitions. [2021-06-05 10:06:45,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 10:06:45,358 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:06:45,358 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:06:45,358 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 10:06:45,358 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:06:45,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:06:45,359 INFO L82 PathProgramCache]: Analyzing trace with hash -2067212407, now seen corresponding path program 1 times [2021-06-05 10:06:45,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:06:45,359 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971041349] [2021-06-05 10:06:45,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:06:45,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:06:45,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:06:45,510 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:06:45,510 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971041349] [2021-06-05 10:06:45,510 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971041349] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:06:45,510 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:06:45,510 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:06:45,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282770099] [2021-06-05 10:06:45,511 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:06:45,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:06:45,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:06:45,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:06:45,512 INFO L87 Difference]: Start difference. First operand 4852 states and 16167 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:45,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:06:45,759 INFO L93 Difference]: Finished difference Result 7536 states and 24719 transitions. [2021-06-05 10:06:45,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 10:06:45,760 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-05 10:06:45,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:06:45,793 INFO L225 Difference]: With dead ends: 7536 [2021-06-05 10:06:45,793 INFO L226 Difference]: Without dead ends: 5632 [2021-06-05 10:06:45,793 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 189.9ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-06-05 10:06:45,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5632 states. [2021-06-05 10:06:45,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5632 to 4792. [2021-06-05 10:06:45,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4792 states, 4791 states have (on average 3.308703819661866) internal successors, (15852), 4791 states have internal predecessors, (15852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:45,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4792 states to 4792 states and 15852 transitions. [2021-06-05 10:06:45,931 INFO L78 Accepts]: Start accepts. Automaton has 4792 states and 15852 transitions. Word has length 51 [2021-06-05 10:06:45,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:06:45,933 INFO L482 AbstractCegarLoop]: Abstraction has 4792 states and 15852 transitions. [2021-06-05 10:06:45,933 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:45,933 INFO L276 IsEmpty]: Start isEmpty. Operand 4792 states and 15852 transitions. [2021-06-05 10:06:45,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 10:06:45,941 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:06:45,941 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:06:45,941 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 10:06:45,941 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:06:45,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:06:45,943 INFO L82 PathProgramCache]: Analyzing trace with hash 551537968, now seen corresponding path program 1 times [2021-06-05 10:06:45,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:06:45,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192202535] [2021-06-05 10:06:45,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:06:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:06:46,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:06:46,032 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:06:46,032 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192202535] [2021-06-05 10:06:46,032 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192202535] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:06:46,033 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:06:46,033 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:06:46,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629287301] [2021-06-05 10:06:46,033 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:06:46,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:06:46,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:06:46,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:06:46,034 INFO L87 Difference]: Start difference. First operand 4792 states and 15852 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:46,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:06:46,155 INFO L93 Difference]: Finished difference Result 6226 states and 20400 transitions. [2021-06-05 10:06:46,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:06:46,156 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-06-05 10:06:46,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:06:46,164 INFO L225 Difference]: With dead ends: 6226 [2021-06-05 10:06:46,165 INFO L226 Difference]: Without dead ends: 3286 [2021-06-05 10:06:46,165 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 95.9ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:06:46,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3286 states. [2021-06-05 10:06:46,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3286 to 3286. [2021-06-05 10:06:46,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 3285 states have (on average 3.1963470319634704) internal successors, (10500), 3285 states have internal predecessors, (10500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:46,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 10500 transitions. [2021-06-05 10:06:46,260 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 10500 transitions. Word has length 53 [2021-06-05 10:06:46,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:06:46,262 INFO L482 AbstractCegarLoop]: Abstraction has 3286 states and 10500 transitions. [2021-06-05 10:06:46,262 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:46,262 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 10500 transitions. [2021-06-05 10:06:46,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 10:06:46,267 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:06:46,268 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:06:46,268 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 10:06:46,270 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:06:46,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:06:46,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1829839270, now seen corresponding path program 1 times [2021-06-05 10:06:46,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:06:46,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274383374] [2021-06-05 10:06:46,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:06:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:06:46,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:06:46,391 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:06:46,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274383374] [2021-06-05 10:06:46,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274383374] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:06:46,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:06:46,392 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:06:46,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845464076] [2021-06-05 10:06:46,392 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:06:46,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:06:46,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:06:46,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:06:46,394 INFO L87 Difference]: Start difference. First operand 3286 states and 10500 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:46,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:06:46,546 INFO L93 Difference]: Finished difference Result 4406 states and 13936 transitions. [2021-06-05 10:06:46,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:06:46,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-05 10:06:46,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:06:46,555 INFO L225 Difference]: With dead ends: 4406 [2021-06-05 10:06:46,555 INFO L226 Difference]: Without dead ends: 3526 [2021-06-05 10:06:46,555 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 129.4ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:06:46,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3526 states. [2021-06-05 10:06:46,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3526 to 3046. [2021-06-05 10:06:46,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3046 states, 3045 states have (on average 3.1789819376026274) internal successors, (9680), 3045 states have internal predecessors, (9680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:46,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3046 states to 3046 states and 9680 transitions. [2021-06-05 10:06:46,630 INFO L78 Accepts]: Start accepts. Automaton has 3046 states and 9680 transitions. Word has length 54 [2021-06-05 10:06:46,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:06:46,630 INFO L482 AbstractCegarLoop]: Abstraction has 3046 states and 9680 transitions. [2021-06-05 10:06:46,631 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:46,631 INFO L276 IsEmpty]: Start isEmpty. Operand 3046 states and 9680 transitions. [2021-06-05 10:06:46,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 10:06:46,635 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:06:46,636 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:06:46,636 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 10:06:46,636 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:06:46,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:06:46,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1886151065, now seen corresponding path program 1 times [2021-06-05 10:06:46,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:06:46,636 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100563477] [2021-06-05 10:06:46,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:06:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:06:46,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:06:46,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:06:46,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100563477] [2021-06-05 10:06:46,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100563477] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:06:46,723 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:06:46,723 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:06:46,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004028467] [2021-06-05 10:06:46,723 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:06:46,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:06:46,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:06:46,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:06:46,724 INFO L87 Difference]: Start difference. First operand 3046 states and 9680 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:46,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:06:46,804 INFO L93 Difference]: Finished difference Result 3833 states and 12056 transitions. [2021-06-05 10:06:46,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:06:46,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-06-05 10:06:46,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:06:46,811 INFO L225 Difference]: With dead ends: 3833 [2021-06-05 10:06:46,811 INFO L226 Difference]: Without dead ends: 2817 [2021-06-05 10:06:46,812 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 64.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:06:46,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2817 states. [2021-06-05 10:06:46,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2817 to 2817. [2021-06-05 10:06:46,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2817 states, 2816 states have (on average 3.1352982954545454) internal successors, (8829), 2816 states have internal predecessors, (8829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:46,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2817 states to 2817 states and 8829 transitions. [2021-06-05 10:06:46,861 INFO L78 Accepts]: Start accepts. Automaton has 2817 states and 8829 transitions. Word has length 56 [2021-06-05 10:06:46,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:06:46,862 INFO L482 AbstractCegarLoop]: Abstraction has 2817 states and 8829 transitions. [2021-06-05 10:06:46,862 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:46,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2817 states and 8829 transitions. [2021-06-05 10:06:46,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 10:06:46,867 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:06:46,867 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:06:46,867 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 10:06:46,867 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:06:46,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:06:46,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1239263126, now seen corresponding path program 1 times [2021-06-05 10:06:46,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:06:46,867 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278959756] [2021-06-05 10:06:46,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:06:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:06:46,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:06:46,922 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:06:46,922 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278959756] [2021-06-05 10:06:46,922 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278959756] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:06:46,922 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:06:46,922 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:06:46,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981283490] [2021-06-05 10:06:46,922 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:06:46,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:06:46,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:06:46,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:06:46,923 INFO L87 Difference]: Start difference. First operand 2817 states and 8829 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:47,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:06:47,028 INFO L93 Difference]: Finished difference Result 3045 states and 9335 transitions. [2021-06-05 10:06:47,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:06:47,028 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-06-05 10:06:47,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:06:47,033 INFO L225 Difference]: With dead ends: 3045 [2021-06-05 10:06:47,033 INFO L226 Difference]: Without dead ends: 2193 [2021-06-05 10:06:47,034 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 73.7ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:06:47,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2021-06-05 10:06:47,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2193. [2021-06-05 10:06:47,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2193 states, 2192 states have (on average 3.0182481751824817) internal successors, (6616), 2192 states have internal predecessors, (6616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:47,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 6616 transitions. [2021-06-05 10:06:47,075 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 6616 transitions. Word has length 57 [2021-06-05 10:06:47,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:06:47,075 INFO L482 AbstractCegarLoop]: Abstraction has 2193 states and 6616 transitions. [2021-06-05 10:06:47,075 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:47,075 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 6616 transitions. [2021-06-05 10:06:47,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-05 10:06:47,079 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:06:47,079 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:06:47,079 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 10:06:47,080 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:06:47,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:06:47,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1322905655, now seen corresponding path program 1 times [2021-06-05 10:06:47,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:06:47,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972475033] [2021-06-05 10:06:47,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:06:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:06:47,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:06:47,145 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:06:47,145 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972475033] [2021-06-05 10:06:47,145 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972475033] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:06:47,145 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:06:47,145 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:06:47,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110895519] [2021-06-05 10:06:47,145 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:06:47,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:06:47,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:06:47,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:06:47,146 INFO L87 Difference]: Start difference. First operand 2193 states and 6616 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:47,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:06:47,282 INFO L93 Difference]: Finished difference Result 1941 states and 5722 transitions. [2021-06-05 10:06:47,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 10:06:47,282 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-06-05 10:06:47,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:06:47,285 INFO L225 Difference]: With dead ends: 1941 [2021-06-05 10:06:47,285 INFO L226 Difference]: Without dead ends: 1033 [2021-06-05 10:06:47,285 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 91.5ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:06:47,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2021-06-05 10:06:47,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 985. [2021-06-05 10:06:47,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 984 states have (on average 2.866869918699187) internal successors, (2821), 984 states have internal predecessors, (2821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:47,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 2821 transitions. [2021-06-05 10:06:47,302 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 2821 transitions. Word has length 59 [2021-06-05 10:06:47,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:06:47,302 INFO L482 AbstractCegarLoop]: Abstraction has 985 states and 2821 transitions. [2021-06-05 10:06:47,302 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:47,302 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 2821 transitions. [2021-06-05 10:06:47,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 10:06:47,304 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:06:47,304 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:06:47,304 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 10:06:47,304 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:06:47,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:06:47,305 INFO L82 PathProgramCache]: Analyzing trace with hash -988566454, now seen corresponding path program 1 times [2021-06-05 10:06:47,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:06:47,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789716010] [2021-06-05 10:06:47,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:06:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:06:47,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:06:47,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:06:47,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789716010] [2021-06-05 10:06:47,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789716010] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:06:47,365 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:06:47,365 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:06:47,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758487022] [2021-06-05 10:06:47,366 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:06:47,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:06:47,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:06:47,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:06:47,366 INFO L87 Difference]: Start difference. First operand 985 states and 2821 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:47,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:06:47,432 INFO L93 Difference]: Finished difference Result 979 states and 2811 transitions. [2021-06-05 10:06:47,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 10:06:47,432 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 10:06:47,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:06:47,432 INFO L225 Difference]: With dead ends: 979 [2021-06-05 10:06:47,432 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:06:47,433 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 78.4ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:06:47,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:06:47,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:06:47,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:47,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:06:47,433 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2021-06-05 10:06:47,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:06:47,433 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:06:47,433 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:06:47,433 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:06:47,434 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:06:47,434 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 10:06:47,435 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 10:06:47,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 10:06:47 BasicIcfg [2021-06-05 10:06:47,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 10:06:47,437 INFO L168 Benchmark]: Toolchain (without parser) took 5055.05 ms. Allocated memory was 394.3 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 356.2 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 160.5 MB. Max. memory is 16.0 GB. [2021-06-05 10:06:47,437 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 394.3 MB. Free memory was 374.4 MB in the beginning and 374.3 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:06:47,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.35 ms. Allocated memory is still 394.3 MB. Free memory was 356.1 MB in the beginning and 355.7 MB in the end (delta: 344.3 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. [2021-06-05 10:06:47,438 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.13 ms. Allocated memory is still 394.3 MB. Free memory was 355.7 MB in the beginning and 353.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:06:47,438 INFO L168 Benchmark]: Boogie Preprocessor took 21.60 ms. Allocated memory is still 394.3 MB. Free memory was 353.6 MB in the beginning and 352.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:06:47,438 INFO L168 Benchmark]: RCFGBuilder took 404.84 ms. Allocated memory is still 394.3 MB. Free memory was 352.6 MB in the beginning and 326.4 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:06:47,438 INFO L168 Benchmark]: TraceAbstraction took 4129.01 ms. Allocated memory was 394.3 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 326.4 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 129.9 MB. Max. memory is 16.0 GB. [2021-06-05 10:06:47,439 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 394.3 MB. Free memory was 374.4 MB in the beginning and 374.3 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 450.35 ms. Allocated memory is still 394.3 MB. Free memory was 356.1 MB in the beginning and 355.7 MB in the end (delta: 344.3 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 43.13 ms. Allocated memory is still 394.3 MB. Free memory was 355.7 MB in the beginning and 353.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 21.60 ms. Allocated memory is still 394.3 MB. Free memory was 353.6 MB in the beginning and 352.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 404.84 ms. Allocated memory is still 394.3 MB. Free memory was 352.6 MB in the beginning and 326.4 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4129.01 ms. Allocated memory was 394.3 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 326.4 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 129.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4058.5ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 105.3ms, AutomataDifference: 1543.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 381.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 957 SDtfs, 1610 SDslu, 3117 SDs, 0 SdLazy, 355 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 282.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 951.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 939.7ms AutomataMinimizationTime, 9 MinimizatonAttempts, 2208 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.7ms SsaConstructionTime, 151.5ms SatisfiabilityAnalysisTime, 764.5ms InterpolantComputationTime, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 482 ConstructedInterpolants, 0 QuantifiedInterpolants, 1866 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...