/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 00:37:07,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 00:37:07,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 00:37:07,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 00:37:07,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 00:37:07,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 00:37:07,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 00:37:07,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 00:37:07,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 00:37:07,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 00:37:07,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 00:37:07,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 00:37:07,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 00:37:07,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 00:37:07,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 00:37:07,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 00:37:07,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 00:37:07,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 00:37:07,315 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 00:37:07,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 00:37:07,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 00:37:07,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 00:37:07,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 00:37:07,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 00:37:07,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 00:37:07,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 00:37:07,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 00:37:07,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 00:37:07,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 00:37:07,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 00:37:07,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 00:37:07,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 00:37:07,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 00:37:07,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 00:37:07,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 00:37:07,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 00:37:07,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 00:37:07,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 00:37:07,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 00:37:07,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 00:37:07,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 00:37:07,359 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 [2020-10-22 00:37:07,381 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 00:37:07,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 00:37:07,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 00:37:07,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 00:37:07,383 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 00:37:07,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 00:37:07,383 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 00:37:07,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 00:37:07,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 00:37:07,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 00:37:07,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 00:37:07,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 00:37:07,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 00:37:07,385 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 00:37:07,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 00:37:07,385 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 00:37:07,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 00:37:07,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 00:37:07,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 00:37:07,386 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 00:37:07,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 00:37:07,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:37:07,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 00:37:07,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 00:37:07,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 00:37:07,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 00:37:07,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 00:37:07,388 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 00:37:07,388 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 00:37:07,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 00:37:07,388 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 00:37:07,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 00:37:07,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 00:37:07,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 00:37:07,729 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 00:37:07,729 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 00:37:07,730 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2020-10-22 00:37:07,798 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39b5b425c/0f672148c6e64bc685a5b7d92538f144/FLAGa134b1583 [2020-10-22 00:37:08,385 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 00:37:08,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2020-10-22 00:37:08,404 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39b5b425c/0f672148c6e64bc685a5b7d92538f144/FLAGa134b1583 [2020-10-22 00:37:08,666 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39b5b425c/0f672148c6e64bc685a5b7d92538f144 [2020-10-22 00:37:08,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 00:37:08,681 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 00:37:08,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 00:37:08,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 00:37:08,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 00:37:08,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:37:08" (1/1) ... [2020-10-22 00:37:08,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38bf2dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:37:08, skipping insertion in model container [2020-10-22 00:37:08,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:37:08" (1/1) ... [2020-10-22 00:37:08,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 00:37:08,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 00:37:09,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:37:09,239 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 00:37:09,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:37:09,405 INFO L208 MainTranslator]: Completed translation [2020-10-22 00:37:09,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:37:09 WrapperNode [2020-10-22 00:37:09,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 00:37:09,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 00:37:09,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 00:37:09,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 00:37:09,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:37:09" (1/1) ... [2020-10-22 00:37:09,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:37:09" (1/1) ... [2020-10-22 00:37:09,460 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 00:37:09,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 00:37:09,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 00:37:09,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 00:37:09,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:37:09" (1/1) ... [2020-10-22 00:37:09,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:37:09" (1/1) ... [2020-10-22 00:37:09,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:37:09" (1/1) ... [2020-10-22 00:37:09,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:37:09" (1/1) ... [2020-10-22 00:37:09,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:37:09" (1/1) ... [2020-10-22 00:37:09,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:37:09" (1/1) ... [2020-10-22 00:37:09,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:37:09" (1/1) ... [2020-10-22 00:37:09,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 00:37:09,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 00:37:09,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 00:37:09,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 00:37:09,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:37:09" (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 [2020-10-22 00:37:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 00:37:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 00:37:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 00:37:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 00:37:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 00:37:09,561 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 00:37:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 00:37:09,562 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 00:37:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 00:37:09,562 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 00:37:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-22 00:37:09,563 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-22 00:37:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 00:37:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 00:37:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 00:37:09,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 00:37:09,565 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 00:37:09,986 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 00:37:09,986 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 00:37:09,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:37:09 BoogieIcfgContainer [2020-10-22 00:37:09,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 00:37:09,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 00:37:09,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 00:37:09,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 00:37:09,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 12:37:08" (1/3) ... [2020-10-22 00:37:09,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3322f02d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:37:09, skipping insertion in model container [2020-10-22 00:37:09,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:37:09" (2/3) ... [2020-10-22 00:37:09,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3322f02d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:37:09, skipping insertion in model container [2020-10-22 00:37:09,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:37:09" (3/3) ... [2020-10-22 00:37:09,998 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc.i [2020-10-22 00:37:10,008 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 00:37:10,009 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 00:37:10,017 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 00:37:10,018 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 00:37:10,055 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,056 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,056 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,057 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,060 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,060 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,062 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,062 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,062 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,063 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,063 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,063 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,064 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,064 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,065 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,065 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,066 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,066 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,071 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,072 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,082 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,083 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,097 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,097 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,098 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,098 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,100 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,100 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:37:10,102 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 00:37:10,114 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-22 00:37:10,132 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:37:10,132 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:37:10,132 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:37:10,132 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:37:10,132 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:37:10,133 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:37:10,133 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:37:10,133 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:37:10,145 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:37:10,146 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 90 transitions, 200 flow [2020-10-22 00:37:10,148 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 90 transitions, 200 flow [2020-10-22 00:37:10,150 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 100 places, 90 transitions, 200 flow [2020-10-22 00:37:10,206 INFO L129 PetriNetUnfolder]: 3/86 cut-off events. [2020-10-22 00:37:10,207 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 00:37:10,213 INFO L80 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 3/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-10-22 00:37:10,217 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-10-22 00:37:11,554 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-10-22 00:37:12,045 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-22 00:37:12,337 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-10-22 00:37:12,392 INFO L131 LiptonReduction]: Checked pairs total: 4371 [2020-10-22 00:37:12,392 INFO L133 LiptonReduction]: Total number of compositions: 85 [2020-10-22 00:37:12,401 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-10-22 00:37:12,463 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-22 00:37:12,465 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-22 00:37:12,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 00:37:12,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:37:12,477 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:37:12,477 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:37:12,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:37:12,486 INFO L82 PathProgramCache]: Analyzing trace with hash -849468874, now seen corresponding path program 1 times [2020-10-22 00:37:12,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:37:12,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320245845] [2020-10-22 00:37:12,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:37:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:37:12,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:37:12,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320245845] [2020-10-22 00:37:12,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:37:12,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 00:37:12,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [587621084] [2020-10-22 00:37:12,793 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:37:12,798 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:37:12,821 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-22 00:37:12,821 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:37:12,827 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:37:12,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:37:12,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:37:12,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:37:12,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:37:12,847 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-22 00:37:12,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:37:12,925 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-22 00:37:12,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:37:12,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-22 00:37:12,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:37:12,960 INFO L225 Difference]: With dead ends: 670 [2020-10-22 00:37:12,960 INFO L226 Difference]: Without dead ends: 526 [2020-10-22 00:37:12,961 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 [2020-10-22 00:37:12,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-22 00:37:13,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-22 00:37:13,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-22 00:37:13,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-22 00:37:13,074 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-22 00:37:13,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:37:13,076 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-22 00:37:13,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:37:13,077 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-22 00:37:13,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 00:37:13,080 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:37:13,080 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:37:13,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 00:37:13,081 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:37:13,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:37:13,082 INFO L82 PathProgramCache]: Analyzing trace with hash -579920157, now seen corresponding path program 1 times [2020-10-22 00:37:13,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:37:13,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784636367] [2020-10-22 00:37:13,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:37:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:37:13,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:37:13,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784636367] [2020-10-22 00:37:13,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:37:13,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:37:13,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [652043870] [2020-10-22 00:37:13,160 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:37:13,162 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:37:13,163 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 17 transitions. [2020-10-22 00:37:13,164 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:37:13,228 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:37:13,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:37:13,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:37:13,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:37:13,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:37:13,230 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-22 00:37:13,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:37:13,267 INFO L93 Difference]: Finished difference Result 682 states and 2180 transitions. [2020-10-22 00:37:13,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 00:37:13,268 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-22 00:37:13,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:37:13,272 INFO L225 Difference]: With dead ends: 682 [2020-10-22 00:37:13,272 INFO L226 Difference]: Without dead ends: 394 [2020-10-22 00:37:13,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:37:13,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-22 00:37:13,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-22 00:37:13,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-22 00:37:13,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1224 transitions. [2020-10-22 00:37:13,297 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1224 transitions. Word has length 11 [2020-10-22 00:37:13,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:37:13,297 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1224 transitions. [2020-10-22 00:37:13,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:37:13,297 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1224 transitions. [2020-10-22 00:37:13,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 00:37:13,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:37:13,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:37:13,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 00:37:13,300 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:37:13,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:37:13,301 INFO L82 PathProgramCache]: Analyzing trace with hash -536731131, now seen corresponding path program 1 times [2020-10-22 00:37:13,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:37:13,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638627356] [2020-10-22 00:37:13,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:37:13,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:37:13,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:37:13,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638627356] [2020-10-22 00:37:13,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:37:13,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 00:37:13,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [671520638] [2020-10-22 00:37:13,370 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:37:13,371 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:37:13,374 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-10-22 00:37:13,374 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:37:13,492 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:37:13,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:37:13,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:37:13,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:37:13,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:37:13,493 INFO L87 Difference]: Start difference. First operand 394 states and 1224 transitions. Second operand 3 states. [2020-10-22 00:37:13,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:37:13,508 INFO L93 Difference]: Finished difference Result 386 states and 1190 transitions. [2020-10-22 00:37:13,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:37:13,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-22 00:37:13,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:37:13,518 INFO L225 Difference]: With dead ends: 386 [2020-10-22 00:37:13,518 INFO L226 Difference]: Without dead ends: 386 [2020-10-22 00:37:13,519 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 [2020-10-22 00:37:13,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-10-22 00:37:13,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2020-10-22 00:37:13,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-10-22 00:37:13,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 1190 transitions. [2020-10-22 00:37:13,555 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 1190 transitions. Word has length 12 [2020-10-22 00:37:13,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:37:13,556 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 1190 transitions. [2020-10-22 00:37:13,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:37:13,556 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 1190 transitions. [2020-10-22 00:37:13,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 00:37:13,561 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:37:13,561 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:37:13,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 00:37:13,564 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:37:13,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:37:13,565 INFO L82 PathProgramCache]: Analyzing trace with hash 541202337, now seen corresponding path program 1 times [2020-10-22 00:37:13,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:37:13,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513588196] [2020-10-22 00:37:13,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:37:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:37:13,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:37:13,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513588196] [2020-10-22 00:37:13,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:37:13,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 00:37:13,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1125658383] [2020-10-22 00:37:13,701 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:37:13,707 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:37:13,710 INFO L252 McrAutomatonBuilder]: Finished intersection with 27 states and 41 transitions. [2020-10-22 00:37:13,711 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:37:13,919 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:37:13,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:37:13,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:37:13,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:37:13,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:37:13,921 INFO L87 Difference]: Start difference. First operand 386 states and 1190 transitions. Second operand 3 states. [2020-10-22 00:37:13,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:37:13,929 INFO L93 Difference]: Finished difference Result 370 states and 1130 transitions. [2020-10-22 00:37:13,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:37:13,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-22 00:37:13,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:37:13,933 INFO L225 Difference]: With dead ends: 370 [2020-10-22 00:37:13,934 INFO L226 Difference]: Without dead ends: 370 [2020-10-22 00:37:13,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:37:13,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-10-22 00:37:13,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2020-10-22 00:37:13,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-10-22 00:37:13,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1130 transitions. [2020-10-22 00:37:13,948 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1130 transitions. Word has length 13 [2020-10-22 00:37:13,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:37:13,949 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 1130 transitions. [2020-10-22 00:37:13,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:37:13,949 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1130 transitions. [2020-10-22 00:37:13,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 00:37:13,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:37:13,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:37:13,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 00:37:13,951 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:37:13,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:37:13,952 INFO L82 PathProgramCache]: Analyzing trace with hash -9141191, now seen corresponding path program 1 times [2020-10-22 00:37:13,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:37:13,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108545183] [2020-10-22 00:37:13,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:37:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:37:14,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:37:14,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108545183] [2020-10-22 00:37:14,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:37:14,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:37:14,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1707424523] [2020-10-22 00:37:14,049 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:37:14,050 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:37:14,058 INFO L252 McrAutomatonBuilder]: Finished intersection with 45 states and 84 transitions. [2020-10-22 00:37:14,059 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:37:14,499 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:37:14,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:37:14,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:37:14,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:37:14,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:37:14,500 INFO L87 Difference]: Start difference. First operand 370 states and 1130 transitions. Second operand 4 states. [2020-10-22 00:37:14,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:37:14,541 INFO L93 Difference]: Finished difference Result 526 states and 1582 transitions. [2020-10-22 00:37:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 00:37:14,542 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-22 00:37:14,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:37:14,545 INFO L225 Difference]: With dead ends: 526 [2020-10-22 00:37:14,545 INFO L226 Difference]: Without dead ends: 286 [2020-10-22 00:37:14,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:37:14,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-22 00:37:14,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2020-10-22 00:37:14,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-10-22 00:37:14,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 851 transitions. [2020-10-22 00:37:14,557 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 851 transitions. Word has length 14 [2020-10-22 00:37:14,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:37:14,557 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 851 transitions. [2020-10-22 00:37:14,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:37:14,557 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 851 transitions. [2020-10-22 00:37:14,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 00:37:14,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:37:14,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:37:14,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 00:37:14,559 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:37:14,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:37:14,560 INFO L82 PathProgramCache]: Analyzing trace with hash -402598089, now seen corresponding path program 2 times [2020-10-22 00:37:14,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:37:14,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730559900] [2020-10-22 00:37:14,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:37:14,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:37:14,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:37:14,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730559900] [2020-10-22 00:37:14,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:37:14,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:37:14,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [665420460] [2020-10-22 00:37:14,694 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:37:14,698 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:37:14,703 INFO L252 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-10-22 00:37:14,703 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:37:14,733 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 00:37:15,007 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [8098#(not (= 4 ~__unbuffered_cnt~0))] [2020-10-22 00:37:15,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:37:15,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:37:15,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:37:15,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:37:15,008 INFO L87 Difference]: Start difference. First operand 286 states and 851 transitions. Second operand 5 states. [2020-10-22 00:37:15,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:37:15,114 INFO L93 Difference]: Finished difference Result 301 states and 817 transitions. [2020-10-22 00:37:15,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 00:37:15,114 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-22 00:37:15,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:37:15,117 INFO L225 Difference]: With dead ends: 301 [2020-10-22 00:37:15,117 INFO L226 Difference]: Without dead ends: 208 [2020-10-22 00:37:15,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:37:15,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-10-22 00:37:15,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2020-10-22 00:37:15,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-10-22 00:37:15,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 528 transitions. [2020-10-22 00:37:15,127 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 528 transitions. Word has length 14 [2020-10-22 00:37:15,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:37:15,127 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 528 transitions. [2020-10-22 00:37:15,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:37:15,127 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 528 transitions. [2020-10-22 00:37:15,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:37:15,129 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:37:15,129 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:37:15,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 00:37:15,129 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:37:15,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:37:15,130 INFO L82 PathProgramCache]: Analyzing trace with hash -2108608562, now seen corresponding path program 1 times [2020-10-22 00:37:15,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:37:15,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442801317] [2020-10-22 00:37:15,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:37:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:37:15,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:37:15,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442801317] [2020-10-22 00:37:15,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:37:15,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 00:37:15,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [189866497] [2020-10-22 00:37:15,228 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:37:15,230 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:37:15,238 INFO L252 McrAutomatonBuilder]: Finished intersection with 44 states and 76 transitions. [2020-10-22 00:37:15,238 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:37:15,250 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 00:37:15,623 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [8826#(not (= 4 ~__unbuffered_cnt~0)), 8827#(not (= ~__unbuffered_cnt~0 3)), 8828#(not (= ~__unbuffered_cnt~0 2)), 8829#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 00:37:15,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:37:15,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:37:15,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:37:15,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:37:15,624 INFO L87 Difference]: Start difference. First operand 208 states and 528 transitions. Second operand 10 states. [2020-10-22 00:37:15,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:37:15,723 INFO L93 Difference]: Finished difference Result 185 states and 463 transitions. [2020-10-22 00:37:15,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-22 00:37:15,723 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:37:15,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:37:15,725 INFO L225 Difference]: With dead ends: 185 [2020-10-22 00:37:15,725 INFO L226 Difference]: Without dead ends: 147 [2020-10-22 00:37:15,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-10-22 00:37:15,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-22 00:37:15,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2020-10-22 00:37:15,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-22 00:37:15,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 362 transitions. [2020-10-22 00:37:15,731 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 362 transitions. Word has length 16 [2020-10-22 00:37:15,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:37:15,731 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 362 transitions. [2020-10-22 00:37:15,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:37:15,731 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 362 transitions. [2020-10-22 00:37:15,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-22 00:37:15,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:37:15,732 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:37:15,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 00:37:15,733 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:37:15,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:37:15,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1961572935, now seen corresponding path program 1 times [2020-10-22 00:37:15,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:37:15,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345620806] [2020-10-22 00:37:15,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:37:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:37:15,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:37:15,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345620806] [2020-10-22 00:37:15,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:37:15,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:37:15,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1062224966] [2020-10-22 00:37:15,773 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:37:15,776 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:37:15,786 INFO L252 McrAutomatonBuilder]: Finished intersection with 65 states and 114 transitions. [2020-10-22 00:37:15,786 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:37:16,047 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:37:16,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:37:16,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:37:16,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:37:16,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:37:16,048 INFO L87 Difference]: Start difference. First operand 147 states and 362 transitions. Second operand 4 states. [2020-10-22 00:37:16,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:37:16,067 INFO L93 Difference]: Finished difference Result 180 states and 435 transitions. [2020-10-22 00:37:16,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 00:37:16,068 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-22 00:37:16,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:37:16,068 INFO L225 Difference]: With dead ends: 180 [2020-10-22 00:37:16,069 INFO L226 Difference]: Without dead ends: 51 [2020-10-22 00:37:16,069 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:37:16,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-22 00:37:16,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-22 00:37:16,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-22 00:37:16,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 97 transitions. [2020-10-22 00:37:16,071 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 97 transitions. Word has length 20 [2020-10-22 00:37:16,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:37:16,072 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 97 transitions. [2020-10-22 00:37:16,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:37:16,072 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 97 transitions. [2020-10-22 00:37:16,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-22 00:37:16,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:37:16,072 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:37:16,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 00:37:16,073 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:37:16,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:37:16,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1921960363, now seen corresponding path program 2 times [2020-10-22 00:37:16,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:37:16,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622084716] [2020-10-22 00:37:16,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:37:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:37:16,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:37:16,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622084716] [2020-10-22 00:37:16,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:37:16,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:37:16,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2019107663] [2020-10-22 00:37:16,109 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:37:16,111 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:37:16,115 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 34 transitions. [2020-10-22 00:37:16,115 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:37:16,127 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:37:16,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:37:16,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:37:16,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:37:16,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:37:16,129 INFO L87 Difference]: Start difference. First operand 51 states and 97 transitions. Second operand 3 states. [2020-10-22 00:37:16,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:37:16,135 INFO L93 Difference]: Finished difference Result 50 states and 96 transitions. [2020-10-22 00:37:16,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:37:16,136 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-10-22 00:37:16,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:37:16,136 INFO L225 Difference]: With dead ends: 50 [2020-10-22 00:37:16,136 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 00:37:16,136 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 [2020-10-22 00:37:16,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 00:37:16,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 00:37:16,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 00:37:16,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 00:37:16,137 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-22 00:37:16,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:37:16,138 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 00:37:16,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:37:16,138 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 00:37:16,138 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 00:37:16,138 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-22 00:37:16,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 12:37:16 BasicIcfg [2020-10-22 00:37:16,142 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 00:37:16,143 INFO L168 Benchmark]: Toolchain (without parser) took 7467.33 ms. Allocated memory was 139.5 MB in the beginning and 288.9 MB in the end (delta: 149.4 MB). Free memory was 100.3 MB in the beginning and 128.5 MB in the end (delta: -28.2 MB). Peak memory consumption was 121.2 MB. Max. memory is 7.1 GB. [2020-10-22 00:37:16,144 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 00:37:16,145 INFO L168 Benchmark]: CACSL2BoogieTranslator took 724.02 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 99.2 MB in the beginning and 154.9 MB in the end (delta: -55.6 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-10-22 00:37:16,145 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.51 ms. Allocated memory is still 201.9 MB. Free memory was 154.9 MB in the beginning and 152.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 00:37:16,146 INFO L168 Benchmark]: Boogie Preprocessor took 28.72 ms. Allocated memory is still 201.9 MB. Free memory was 152.9 MB in the beginning and 151.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-22 00:37:16,147 INFO L168 Benchmark]: RCFGBuilder took 499.80 ms. Allocated memory is still 201.9 MB. Free memory was 150.9 MB in the beginning and 125.3 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-10-22 00:37:16,148 INFO L168 Benchmark]: TraceAbstraction took 6151.36 ms. Allocated memory was 201.9 MB in the beginning and 288.9 MB in the end (delta: 87.0 MB). Free memory was 125.3 MB in the beginning and 128.5 MB in the end (delta: -3.3 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. [2020-10-22 00:37:16,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 724.02 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 99.2 MB in the beginning and 154.9 MB in the end (delta: -55.6 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.51 ms. Allocated memory is still 201.9 MB. Free memory was 154.9 MB in the beginning and 152.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.72 ms. Allocated memory is still 201.9 MB. Free memory was 152.9 MB in the beginning and 151.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 499.80 ms. Allocated memory is still 201.9 MB. Free memory was 150.9 MB in the beginning and 125.3 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6151.36 ms. Allocated memory was 201.9 MB in the beginning and 288.9 MB in the end (delta: 87.0 MB). Free memory was 125.3 MB in the beginning and 128.5 MB in the end (delta: -3.3 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1133 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 62 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.2s, 100 PlacesBefore, 38 PlacesAfterwards, 90 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 85 TotalNumberOfCompositions, 4371 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.0s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 191 SDtfs, 153 SDslu, 277 SDs, 0 SdLazy, 143 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 129 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 121 ConstructedInterpolants, 0 QuantifiedInterpolants, 4785 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...