/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:33:43,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:33:43,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:33:43,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:33:43,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:33:43,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:33:43,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:33:43,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:33:43,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:33:43,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:33:43,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:33:43,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:33:43,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:33:43,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:33:43,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:33:43,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:33:43,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:33:43,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:33:43,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:33:43,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:33:43,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:33:43,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:33:43,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:33:43,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:33:43,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 15:33:43,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:33:43,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:33:43,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:33:43,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:33:43,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:33:43,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:33:43,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:33:43,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:33:43,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:33:43,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:33:43,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:33:43,361 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-11-09 15:33:43,413 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:33:43,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:33:43,418 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:33:43,418 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:33:43,418 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:33:43,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:33:43,419 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:33:43,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:33:43,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:33:43,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:33:43,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:33:43,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:33:43,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:33:43,421 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:33:43,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:33:43,421 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:33:43,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:33:43,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:33:43,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:33:43,422 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:33:43,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:33:43,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:33:43,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:33:43,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:33:43,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:33:43,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:33:43,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:33:43,424 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:33:43,424 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:33:43,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:33:43,424 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:33:43,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:33:43,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:33:43,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:33:43,830 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:33:43,830 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:33:43,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.opt.i [2020-11-09 15:33:43,925 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aafdfa0c9/9884e673da4a4762ac2265f34bde4b80/FLAGca4ec2758 [2020-11-09 15:33:44,663 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:33:44,664 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe005_tso.opt.i [2020-11-09 15:33:44,686 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aafdfa0c9/9884e673da4a4762ac2265f34bde4b80/FLAGca4ec2758 [2020-11-09 15:33:44,911 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aafdfa0c9/9884e673da4a4762ac2265f34bde4b80 [2020-11-09 15:33:44,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:33:44,927 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:33:44,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:33:44,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:33:44,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:33:44,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:33:44" (1/1) ... [2020-11-09 15:33:44,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bc63c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:33:44, skipping insertion in model container [2020-11-09 15:33:44,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:33:44" (1/1) ... [2020-11-09 15:33:44,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:33:44,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:33:45,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:33:45,414 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:33:45,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:33:45,698 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:33:45,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:33:45 WrapperNode [2020-11-09 15:33:45,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:33:45,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:33:45,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:33:45,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:33:45,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:33:45" (1/1) ... [2020-11-09 15:33:45,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:33:45" (1/1) ... [2020-11-09 15:33:45,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:33:45,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:33:45,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:33:45,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:33:45,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:33:45" (1/1) ... [2020-11-09 15:33:45,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:33:45" (1/1) ... [2020-11-09 15:33:45,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:33:45" (1/1) ... [2020-11-09 15:33:45,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:33:45" (1/1) ... [2020-11-09 15:33:45,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:33:45" (1/1) ... [2020-11-09 15:33:45,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:33:45" (1/1) ... [2020-11-09 15:33:45,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:33:45" (1/1) ... [2020-11-09 15:33:45,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:33:45,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:33:45,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:33:45,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:33:45,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:33:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:33:45,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:33:45,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 15:33:45,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:33:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:33:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 15:33:45,944 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 15:33:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 15:33:45,944 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 15:33:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 15:33:45,944 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 15:33:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:33:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 15:33:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:33:45,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:33:45,947 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 15:33:46,415 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:33:46,415 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 15:33:46,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:33:46 BoogieIcfgContainer [2020-11-09 15:33:46,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:33:46,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:33:46,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:33:46,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:33:46,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:33:44" (1/3) ... [2020-11-09 15:33:46,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e865057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:33:46, skipping insertion in model container [2020-11-09 15:33:46,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:33:45" (2/3) ... [2020-11-09 15:33:46,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e865057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:33:46, skipping insertion in model container [2020-11-09 15:33:46,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:33:46" (3/3) ... [2020-11-09 15:33:46,428 INFO L111 eAbstractionObserver]: Analyzing ICFG safe005_tso.opt.i [2020-11-09 15:33:46,444 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:33:46,444 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:33:46,448 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 15:33:46,449 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:33:46,487 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,487 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,488 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,488 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,488 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,488 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,489 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,489 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,489 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,489 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,491 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,491 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,491 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,491 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,491 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,491 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,493 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,493 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,493 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,494 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,494 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,494 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,494 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,494 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,495 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,495 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,496 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,496 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,499 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,499 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,506 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,506 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,507 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,507 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,511 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,511 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,511 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,512 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:33:46,514 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:33:46,527 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 15:33:46,551 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:33:46,551 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:33:46,551 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:33:46,551 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:33:46,551 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:33:46,552 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:33:46,552 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:33:46,552 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:33:46,565 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:33:46,566 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 15:33:46,569 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 15:33:46,571 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-11-09 15:33:46,644 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-11-09 15:33:46,644 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 15:33:46,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 15:33:46,656 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 15:33:49,547 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-11-09 15:33:49,698 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-11-09 15:33:50,496 WARN L194 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-11-09 15:33:50,610 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:33:50,854 WARN L194 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-11-09 15:33:50,967 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:33:51,154 INFO L131 LiptonReduction]: Checked pairs total: 2926 [2020-11-09 15:33:51,154 INFO L133 LiptonReduction]: Total number of compositions: 72 [2020-11-09 15:33:51,161 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-09 15:33:51,188 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-11-09 15:33:51,191 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-11-09 15:33:51,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 15:33:51,198 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:33:51,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:33:51,199 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:33:51,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:33:51,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1098074663, now seen corresponding path program 1 times [2020-11-09 15:33:51,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:33:51,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411354521] [2020-11-09 15:33:51,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:33:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:33:51,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:33:51,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411354521] [2020-11-09 15:33:51,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:33:51,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:33:51,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1226578899] [2020-11-09 15:33:51,478 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:33:51,481 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:33:51,495 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 15:33:51,495 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:33:51,500 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:33:51,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:33:51,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:33:51,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:33:51,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:33:51,518 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-11-09 15:33:51,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:33:51,569 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-11-09 15:33:51,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:33:51,571 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-09 15:33:51,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:33:51,585 INFO L225 Difference]: With dead ends: 290 [2020-11-09 15:33:51,586 INFO L226 Difference]: Without dead ends: 226 [2020-11-09 15:33:51,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:33:51,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-11-09 15:33:51,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-11-09 15:33:51,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-11-09 15:33:51,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-11-09 15:33:51,659 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-11-09 15:33:51,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:33:51,660 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-11-09 15:33:51,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:33:51,661 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-11-09 15:33:51,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 15:33:51,662 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:33:51,662 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:33:51,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:33:51,663 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:33:51,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:33:51,664 INFO L82 PathProgramCache]: Analyzing trace with hash 320273006, now seen corresponding path program 1 times [2020-11-09 15:33:51,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:33:51,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548805121] [2020-11-09 15:33:51,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:33:51,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:33:51,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:33:51,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548805121] [2020-11-09 15:33:51,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:33:51,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:33:51,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1360877815] [2020-11-09 15:33:51,750 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:33:51,751 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:33:51,757 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions. [2020-11-09 15:33:51,757 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:33:51,859 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:33:51,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:33:51,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:33:51,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:33:51,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:33:51,863 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-11-09 15:33:51,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:33:51,882 INFO L93 Difference]: Finished difference Result 212 states and 578 transitions. [2020-11-09 15:33:51,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:33:51,883 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-09 15:33:51,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:33:51,886 INFO L225 Difference]: With dead ends: 212 [2020-11-09 15:33:51,887 INFO L226 Difference]: Without dead ends: 212 [2020-11-09 15:33:51,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:33:51,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-11-09 15:33:51,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-11-09 15:33:51,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-11-09 15:33:51,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 578 transitions. [2020-11-09 15:33:51,922 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 578 transitions. Word has length 9 [2020-11-09 15:33:51,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:33:51,923 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 578 transitions. [2020-11-09 15:33:51,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:33:51,926 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 578 transitions. [2020-11-09 15:33:51,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 15:33:51,928 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:33:51,930 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:33:51,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:33:51,931 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:33:51,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:33:51,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1338497509, now seen corresponding path program 1 times [2020-11-09 15:33:51,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:33:51,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954588802] [2020-11-09 15:33:51,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:33:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:33:52,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:33:52,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954588802] [2020-11-09 15:33:52,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:33:52,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:33:52,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1020927366] [2020-11-09 15:33:52,036 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:33:52,037 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:33:52,038 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 22 transitions. [2020-11-09 15:33:52,038 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:33:52,106 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:33:52,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:33:52,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:33:52,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:33:52,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:33:52,108 INFO L87 Difference]: Start difference. First operand 212 states and 578 transitions. Second operand 4 states. [2020-11-09 15:33:52,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:33:52,165 INFO L93 Difference]: Finished difference Result 398 states and 1041 transitions. [2020-11-09 15:33:52,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:33:52,165 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-09 15:33:52,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:33:52,170 INFO L225 Difference]: With dead ends: 398 [2020-11-09 15:33:52,170 INFO L226 Difference]: Without dead ends: 266 [2020-11-09 15:33:52,171 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:33:52,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-09 15:33:52,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 212. [2020-11-09 15:33:52,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-11-09 15:33:52,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 558 transitions. [2020-11-09 15:33:52,203 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 558 transitions. Word has length 10 [2020-11-09 15:33:52,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:33:52,203 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 558 transitions. [2020-11-09 15:33:52,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:33:52,204 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 558 transitions. [2020-11-09 15:33:52,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 15:33:52,205 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:33:52,205 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:33:52,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:33:52,206 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:33:52,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:33:52,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1311224329, now seen corresponding path program 2 times [2020-11-09 15:33:52,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:33:52,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067462184] [2020-11-09 15:33:52,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:33:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:33:52,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:33:52,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067462184] [2020-11-09 15:33:52,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:33:52,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:33:52,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [136707969] [2020-11-09 15:33:52,258 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:33:52,259 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:33:52,261 INFO L252 McrAutomatonBuilder]: Finished intersection with 13 states and 14 transitions. [2020-11-09 15:33:52,261 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:33:52,266 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:33:52,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:33:52,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:33:52,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:33:52,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:33:52,268 INFO L87 Difference]: Start difference. First operand 212 states and 558 transitions. Second operand 4 states. [2020-11-09 15:33:52,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:33:52,296 INFO L93 Difference]: Finished difference Result 242 states and 614 transitions. [2020-11-09 15:33:52,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:33:52,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-09 15:33:52,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:33:52,298 INFO L225 Difference]: With dead ends: 242 [2020-11-09 15:33:52,298 INFO L226 Difference]: Without dead ends: 146 [2020-11-09 15:33:52,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:33:52,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-11-09 15:33:52,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-11-09 15:33:52,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-11-09 15:33:52,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 354 transitions. [2020-11-09 15:33:52,307 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 354 transitions. Word has length 10 [2020-11-09 15:33:52,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:33:52,307 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 354 transitions. [2020-11-09 15:33:52,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:33:52,308 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 354 transitions. [2020-11-09 15:33:52,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 15:33:52,309 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:33:52,309 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:33:52,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:33:52,309 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:33:52,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:33:52,310 INFO L82 PathProgramCache]: Analyzing trace with hash 266199867, now seen corresponding path program 1 times [2020-11-09 15:33:52,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:33:52,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749862989] [2020-11-09 15:33:52,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:33:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:33:52,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:33:52,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749862989] [2020-11-09 15:33:52,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:33:52,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:33:52,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [167537391] [2020-11-09 15:33:52,353 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:33:52,354 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:33:52,356 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-11-09 15:33:52,356 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:33:52,360 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:33:52,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:33:52,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:33:52,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:33:52,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:33:52,361 INFO L87 Difference]: Start difference. First operand 146 states and 354 transitions. Second operand 3 states. [2020-11-09 15:33:52,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:33:52,376 INFO L93 Difference]: Finished difference Result 176 states and 419 transitions. [2020-11-09 15:33:52,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:33:52,376 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-09 15:33:52,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:33:52,377 INFO L225 Difference]: With dead ends: 176 [2020-11-09 15:33:52,378 INFO L226 Difference]: Without dead ends: 86 [2020-11-09 15:33:52,378 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:33:52,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-11-09 15:33:52,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-11-09 15:33:52,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-11-09 15:33:52,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 199 transitions. [2020-11-09 15:33:52,382 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 199 transitions. Word has length 11 [2020-11-09 15:33:52,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:33:52,383 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 199 transitions. [2020-11-09 15:33:52,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:33:52,383 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 199 transitions. [2020-11-09 15:33:52,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 15:33:52,384 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:33:52,384 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:33:52,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 15:33:52,384 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:33:52,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:33:52,385 INFO L82 PathProgramCache]: Analyzing trace with hash -337754424, now seen corresponding path program 1 times [2020-11-09 15:33:52,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:33:52,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897104113] [2020-11-09 15:33:52,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:33:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:33:52,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:33:52,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897104113] [2020-11-09 15:33:52,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:33:52,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:33:52,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [335103598] [2020-11-09 15:33:52,449 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:33:52,450 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:33:52,454 INFO L252 McrAutomatonBuilder]: Finished intersection with 31 states and 50 transitions. [2020-11-09 15:33:52,454 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:33:52,488 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:33:52,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:33:52,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:33:52,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:33:52,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:33:52,490 INFO L87 Difference]: Start difference. First operand 86 states and 199 transitions. Second operand 3 states. [2020-11-09 15:33:52,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:33:52,495 INFO L93 Difference]: Finished difference Result 80 states and 180 transitions. [2020-11-09 15:33:52,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:33:52,495 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-09 15:33:52,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:33:52,497 INFO L225 Difference]: With dead ends: 80 [2020-11-09 15:33:52,497 INFO L226 Difference]: Without dead ends: 80 [2020-11-09 15:33:52,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:33:52,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-11-09 15:33:52,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-11-09 15:33:52,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-11-09 15:33:52,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 180 transitions. [2020-11-09 15:33:52,501 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 180 transitions. Word has length 12 [2020-11-09 15:33:52,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:33:52,502 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 180 transitions. [2020-11-09 15:33:52,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:33:52,502 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 180 transitions. [2020-11-09 15:33:52,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 15:33:52,503 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:33:52,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:33:52,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 15:33:52,503 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:33:52,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:33:52,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1881630110, now seen corresponding path program 1 times [2020-11-09 15:33:52,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:33:52,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852018782] [2020-11-09 15:33:52,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:33:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:33:52,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:33:52,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852018782] [2020-11-09 15:33:52,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:33:52,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:33:52,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [121649683] [2020-11-09 15:33:52,579 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:33:52,581 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:33:52,584 INFO L252 McrAutomatonBuilder]: Finished intersection with 33 states and 53 transitions. [2020-11-09 15:33:52,585 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:33:52,629 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:33:52,676 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:33:52,696 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:33:52,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:33:52,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:33:52,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:33:52,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:33:52,698 INFO L87 Difference]: Start difference. First operand 80 states and 180 transitions. Second operand 4 states. [2020-11-09 15:33:52,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:33:52,753 INFO L93 Difference]: Finished difference Result 97 states and 201 transitions. [2020-11-09 15:33:52,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:33:52,755 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-09 15:33:52,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:33:52,756 INFO L225 Difference]: With dead ends: 97 [2020-11-09 15:33:52,756 INFO L226 Difference]: Without dead ends: 69 [2020-11-09 15:33:52,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:33:52,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-11-09 15:33:52,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-11-09 15:33:52,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-11-09 15:33:52,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 141 transitions. [2020-11-09 15:33:52,765 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 141 transitions. Word has length 13 [2020-11-09 15:33:52,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:33:52,765 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 141 transitions. [2020-11-09 15:33:52,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:33:52,765 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 141 transitions. [2020-11-09 15:33:52,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 15:33:52,766 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:33:52,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:33:52,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 15:33:52,767 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:33:52,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:33:52,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1813720345, now seen corresponding path program 1 times [2020-11-09 15:33:52,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:33:52,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753560140] [2020-11-09 15:33:52,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:33:52,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:33:52,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:33:52,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753560140] [2020-11-09 15:33:52,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:33:52,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:33:52,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1182318297] [2020-11-09 15:33:52,913 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:33:52,915 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:33:52,920 INFO L252 McrAutomatonBuilder]: Finished intersection with 35 states and 55 transitions. [2020-11-09 15:33:52,920 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:33:53,003 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4278#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 15:33:53,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 15:33:53,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:33:53,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 15:33:53,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 15:33:53,005 INFO L87 Difference]: Start difference. First operand 69 states and 141 transitions. Second operand 6 states. [2020-11-09 15:33:53,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:33:53,074 INFO L93 Difference]: Finished difference Result 71 states and 132 transitions. [2020-11-09 15:33:53,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 15:33:53,075 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-09 15:33:53,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:33:53,076 INFO L225 Difference]: With dead ends: 71 [2020-11-09 15:33:53,076 INFO L226 Difference]: Without dead ends: 52 [2020-11-09 15:33:53,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:33:53,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-09 15:33:53,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-11-09 15:33:53,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-09 15:33:53,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 91 transitions. [2020-11-09 15:33:53,079 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 91 transitions. Word has length 14 [2020-11-09 15:33:53,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:33:53,080 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 91 transitions. [2020-11-09 15:33:53,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 15:33:53,080 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 91 transitions. [2020-11-09 15:33:53,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 15:33:53,081 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:33:53,081 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:33:53,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 15:33:53,082 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:33:53,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:33:53,083 INFO L82 PathProgramCache]: Analyzing trace with hash 391097630, now seen corresponding path program 1 times [2020-11-09 15:33:53,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:33:53,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160372954] [2020-11-09 15:33:53,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:33:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:33:53,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:33:53,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160372954] [2020-11-09 15:33:53,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:33:53,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:33:53,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1317594223] [2020-11-09 15:33:53,186 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:33:53,188 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:33:53,192 INFO L252 McrAutomatonBuilder]: Finished intersection with 35 states and 54 transitions. [2020-11-09 15:33:53,193 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:33:53,240 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4462#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 15:33:53,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 15:33:53,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:33:53,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 15:33:53,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:33:53,241 INFO L87 Difference]: Start difference. First operand 52 states and 91 transitions. Second operand 7 states. [2020-11-09 15:33:53,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:33:53,297 INFO L93 Difference]: Finished difference Result 49 states and 83 transitions. [2020-11-09 15:33:53,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:33:53,298 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-11-09 15:33:53,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:33:53,299 INFO L225 Difference]: With dead ends: 49 [2020-11-09 15:33:53,299 INFO L226 Difference]: Without dead ends: 42 [2020-11-09 15:33:53,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-09 15:33:53,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-09 15:33:53,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-11-09 15:33:53,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-09 15:33:53,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 71 transitions. [2020-11-09 15:33:53,301 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 71 transitions. Word has length 15 [2020-11-09 15:33:53,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:33:53,301 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 71 transitions. [2020-11-09 15:33:53,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 15:33:53,302 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions. [2020-11-09 15:33:53,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 15:33:53,302 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:33:53,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:33:53,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 15:33:53,302 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:33:53,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:33:53,303 INFO L82 PathProgramCache]: Analyzing trace with hash -2114303388, now seen corresponding path program 1 times [2020-11-09 15:33:53,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:33:53,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350672871] [2020-11-09 15:33:53,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:33:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:33:53,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:33:53,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350672871] [2020-11-09 15:33:53,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:33:53,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:33:53,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1877295714] [2020-11-09 15:33:53,339 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:33:53,341 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:33:53,347 INFO L252 McrAutomatonBuilder]: Finished intersection with 41 states and 63 transitions. [2020-11-09 15:33:53,347 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:33:53,386 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:33:53,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:33:53,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:33:53,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:33:53,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:33:53,387 INFO L87 Difference]: Start difference. First operand 42 states and 71 transitions. Second operand 4 states. [2020-11-09 15:33:53,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:33:53,404 INFO L93 Difference]: Finished difference Result 41 states and 70 transitions. [2020-11-09 15:33:53,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:33:53,405 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 15:33:53,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:33:53,405 INFO L225 Difference]: With dead ends: 41 [2020-11-09 15:33:53,405 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 15:33:53,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:33:53,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 15:33:53,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 15:33:53,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 15:33:53,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 15:33:53,408 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 15:33:53,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:33:53,408 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 15:33:53,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:33:53,408 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 15:33:53,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 15:33:53,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-09 15:33:53,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:33:53 BasicIcfg [2020-11-09 15:33:53,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:33:53,415 INFO L168 Benchmark]: Toolchain (without parser) took 8492.01 ms. Allocated memory was 151.0 MB in the beginning and 223.3 MB in the end (delta: 72.4 MB). Free memory was 104.2 MB in the beginning and 118.1 MB in the end (delta: -13.9 MB). Peak memory consumption was 60.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:33:53,416 INFO L168 Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:33:53,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.35 ms. Allocated memory is still 151.0 MB. Free memory was 103.3 MB in the beginning and 113.7 MB in the end (delta: -10.3 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2020-11-09 15:33:53,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.13 ms. Allocated memory is still 151.0 MB. Free memory was 113.7 MB in the beginning and 111.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:33:53,424 INFO L168 Benchmark]: Boogie Preprocessor took 57.66 ms. Allocated memory is still 151.0 MB. Free memory was 111.7 MB in the beginning and 110.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:33:53,425 INFO L168 Benchmark]: RCFGBuilder took 566.80 ms. Allocated memory is still 151.0 MB. Free memory was 110.5 MB in the beginning and 88.6 MB in the end (delta: 21.9 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:33:53,426 INFO L168 Benchmark]: TraceAbstraction took 6993.33 ms. Allocated memory was 151.0 MB in the beginning and 223.3 MB in the end (delta: 72.4 MB). Free memory was 88.0 MB in the beginning and 118.1 MB in the end (delta: -30.1 MB). Peak memory consumption was 43.3 MB. Max. memory is 8.0 GB. [2020-11-09 15:33:53,433 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 770.35 ms. Allocated memory is still 151.0 MB. Free memory was 103.3 MB in the beginning and 113.7 MB in the end (delta: -10.3 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 89.13 ms. Allocated memory is still 151.0 MB. Free memory was 113.7 MB in the beginning and 111.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 57.66 ms. Allocated memory is still 151.0 MB. Free memory was 111.7 MB in the beginning and 110.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 566.80 ms. Allocated memory is still 151.0 MB. Free memory was 110.5 MB in the beginning and 88.6 MB in the end (delta: 21.9 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6993.33 ms. Allocated memory was 151.0 MB in the beginning and 223.3 MB in the end (delta: 72.4 MB). Free memory was 88.0 MB in the beginning and 118.1 MB in the end (delta: -30.1 MB). Peak memory consumption was 43.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 780 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 52 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.5s, 86 PlacesBefore, 31 PlacesAfterwards, 79 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 72 TotalNumberOfCompositions, 2926 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 189 SDtfs, 120 SDslu, 211 SDs, 0 SdLazy, 131 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 68 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 54 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 3573 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...