/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/safe014_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 00:35:43,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 00:35:43,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 00:35:44,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 00:35:44,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 00:35:44,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 00:35:44,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 00:35:44,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 00:35:44,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 00:35:44,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 00:35:44,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 00:35:44,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 00:35:44,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 00:35:44,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 00:35:44,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 00:35:44,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 00:35:44,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 00:35:44,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 00:35:44,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 00:35:44,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 00:35:44,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 00:35:44,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 00:35:44,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 00:35:44,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 00:35:44,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 00:35:44,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 00:35:44,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 00:35:44,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 00:35:44,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 00:35:44,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 00:35:44,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 00:35:44,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 00:35:44,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 00:35:44,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 00:35:44,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 00:35:44,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 00:35:44,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 00:35:44,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 00:35:44,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 00:35:44,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 00:35:44,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 00:35:44,073 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 00:35:44,095 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 00:35:44,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 00:35:44,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 00:35:44,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 00:35:44,097 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 00:35:44,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 00:35:44,098 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 00:35:44,098 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 00:35:44,098 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 00:35:44,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 00:35:44,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 00:35:44,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 00:35:44,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 00:35:44,099 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 00:35:44,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 00:35:44,099 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 00:35:44,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 00:35:44,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 00:35:44,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 00:35:44,100 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 00:35:44,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 00:35:44,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:35:44,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 00:35:44,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 00:35:44,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 00:35:44,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 00:35:44,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 00:35:44,102 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 00:35:44,102 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 00:35:44,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 00:35:44,102 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 00:35:44,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 00:35:44,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 00:35:44,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 00:35:44,393 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 00:35:44,394 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 00:35:44,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i [2020-10-22 00:35:44,456 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02e7d716e/ff6eb54c088c43a1a6bfa50a3a7b05a3/FLAG3da3da4f0 [2020-10-22 00:35:44,902 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 00:35:44,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i [2020-10-22 00:35:44,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02e7d716e/ff6eb54c088c43a1a6bfa50a3a7b05a3/FLAG3da3da4f0 [2020-10-22 00:35:45,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02e7d716e/ff6eb54c088c43a1a6bfa50a3a7b05a3 [2020-10-22 00:35:45,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 00:35:45,285 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 00:35:45,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 00:35:45,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 00:35:45,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 00:35:45,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:35:45" (1/1) ... [2020-10-22 00:35:45,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dd7f689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:45, skipping insertion in model container [2020-10-22 00:35:45,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:35:45" (1/1) ... [2020-10-22 00:35:45,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 00:35:45,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 00:35:45,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:35:45,849 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 00:35:45,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:35:45,980 INFO L208 MainTranslator]: Completed translation [2020-10-22 00:35:45,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:45 WrapperNode [2020-10-22 00:35:45,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 00:35:45,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 00:35:45,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 00:35:45,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 00:35:45,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:45" (1/1) ... [2020-10-22 00:35:46,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:45" (1/1) ... [2020-10-22 00:35:46,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 00:35:46,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 00:35:46,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 00:35:46,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 00:35:46,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:45" (1/1) ... [2020-10-22 00:35:46,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:45" (1/1) ... [2020-10-22 00:35:46,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:45" (1/1) ... [2020-10-22 00:35:46,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:45" (1/1) ... [2020-10-22 00:35:46,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:45" (1/1) ... [2020-10-22 00:35:46,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:45" (1/1) ... [2020-10-22 00:35:46,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:45" (1/1) ... [2020-10-22 00:35:46,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 00:35:46,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 00:35:46,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 00:35:46,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 00:35:46,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:45" (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 [2020-10-22 00:35:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 00:35:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 00:35:46,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 00:35:46,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 00:35:46,130 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 00:35:46,130 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 00:35:46,130 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 00:35:46,130 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 00:35:46,131 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 00:35:46,131 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 00:35:46,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 00:35:46,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 00:35:46,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 00:35:46,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 00:35:46,133 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 00:35:46,524 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 00:35:46,524 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 00:35:46,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:35:46 BoogieIcfgContainer [2020-10-22 00:35:46,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 00:35:46,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 00:35:46,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 00:35:46,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 00:35:46,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 12:35:45" (1/3) ... [2020-10-22 00:35:46,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e787934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:35:46, skipping insertion in model container [2020-10-22 00:35:46,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:35:45" (2/3) ... [2020-10-22 00:35:46,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e787934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:35:46, skipping insertion in model container [2020-10-22 00:35:46,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:35:46" (3/3) ... [2020-10-22 00:35:46,536 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_tso.oepc.i [2020-10-22 00:35:46,547 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 00:35:46,548 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 00:35:46,556 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 00:35:46,557 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 00:35:46,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,586 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,586 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,587 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,587 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,587 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,588 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,588 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,588 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,589 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,589 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,589 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,590 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,590 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,590 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,591 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,591 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,594 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,595 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,595 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,596 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,601 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,603 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,603 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,603 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,605 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,606 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,606 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,606 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:35:46,608 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 00:35:46,622 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 00:35:46,643 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:35:46,644 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:35:46,644 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:35:46,644 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:35:46,644 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:35:46,644 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:35:46,645 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:35:46,645 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:35:46,658 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:35:46,659 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 00:35:46,662 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 00:35:46,664 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-22 00:35:46,712 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-22 00:35:46,712 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 00:35:46,717 INFO L80 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 57 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. [2020-10-22 00:35:46,721 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-22 00:35:48,393 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-22 00:35:48,491 INFO L131 LiptonReduction]: Checked pairs total: 2779 [2020-10-22 00:35:48,492 INFO L133 LiptonReduction]: Total number of compositions: 70 [2020-10-22 00:35:48,498 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-22 00:35:48,528 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-22 00:35:48,530 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-22 00:35:48,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 00:35:48,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:35:48,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:35:48,539 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:35:48,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:35:48,545 INFO L82 PathProgramCache]: Analyzing trace with hash -460323677, now seen corresponding path program 1 times [2020-10-22 00:35:48,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:35:48,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744670421] [2020-10-22 00:35:48,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:35:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:35:48,745 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 00:35:48,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744670421] [2020-10-22 00:35:48,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:35:48,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:35:48,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [254794879] [2020-10-22 00:35:48,748 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:35:48,751 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:35:48,765 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 00:35:48,765 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:35:48,769 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:35:48,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 00:35:48,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:35:48,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 00:35:48,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 00:35:48,787 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-22 00:35:48,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:35:48,813 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-22 00:35:48,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 00:35:48,815 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-22 00:35:48,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:35:48,831 INFO L225 Difference]: With dead ends: 362 [2020-10-22 00:35:48,831 INFO L226 Difference]: Without dead ends: 298 [2020-10-22 00:35:48,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 00:35:48,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-22 00:35:48,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-22 00:35:48,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-22 00:35:48,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-22 00:35:48,926 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-22 00:35:48,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:35:48,927 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-22 00:35:48,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 00:35:48,928 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-22 00:35:48,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 00:35:48,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:35:48,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:35:48,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 00:35:48,932 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:35:48,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:35:48,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1385173359, now seen corresponding path program 1 times [2020-10-22 00:35:48,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:35:48,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554790589] [2020-10-22 00:35:48,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:35:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:35:49,120 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 00:35:49,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554790589] [2020-10-22 00:35:49,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:35:49,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:35:49,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1006109438] [2020-10-22 00:35:49,121 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:35:49,122 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:35:49,123 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-22 00:35:49,124 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:35:49,124 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:35:49,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:35:49,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:35:49,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:35:49,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:35:49,127 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-22 00:35:49,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:35:49,171 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-22 00:35:49,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:35:49,172 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-22 00:35:49,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:35:49,175 INFO L225 Difference]: With dead ends: 330 [2020-10-22 00:35:49,176 INFO L226 Difference]: Without dead ends: 266 [2020-10-22 00:35:49,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 00:35:49,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-22 00:35:49,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-22 00:35:49,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-22 00:35:49,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-22 00:35:49,199 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-22 00:35:49,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:35:49,199 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-22 00:35:49,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:35:49,199 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-22 00:35:49,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 00:35:49,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:35:49,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:35:49,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 00:35:49,202 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:35:49,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:35:49,202 INFO L82 PathProgramCache]: Analyzing trace with hash 36377952, now seen corresponding path program 1 times [2020-10-22 00:35:49,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:35:49,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147885491] [2020-10-22 00:35:49,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:35:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:35:49,279 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 00:35:49,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147885491] [2020-10-22 00:35:49,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:35:49,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:35:49,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1177128017] [2020-10-22 00:35:49,280 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:35:49,281 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:35:49,283 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 16 transitions. [2020-10-22 00:35:49,283 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:35:49,324 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:35:49,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:35:49,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:35:49,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:35:49,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:35:49,325 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 4 states. [2020-10-22 00:35:49,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:35:49,359 INFO L93 Difference]: Finished difference Result 282 states and 760 transitions. [2020-10-22 00:35:49,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:35:49,359 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-22 00:35:49,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:35:49,362 INFO L225 Difference]: With dead ends: 282 [2020-10-22 00:35:49,362 INFO L226 Difference]: Without dead ends: 234 [2020-10-22 00:35:49,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 00:35:49,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-10-22 00:35:49,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-10-22 00:35:49,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-22 00:35:49,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 640 transitions. [2020-10-22 00:35:49,379 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 640 transitions. Word has length 10 [2020-10-22 00:35:49,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:35:49,379 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 640 transitions. [2020-10-22 00:35:49,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:35:49,379 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 640 transitions. [2020-10-22 00:35:49,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 00:35:49,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:35:49,381 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:35:49,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 00:35:49,381 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:35:49,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:35:49,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1113237188, now seen corresponding path program 1 times [2020-10-22 00:35:49,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:35:49,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693048411] [2020-10-22 00:35:49,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:35:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:35:49,496 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 00:35:49,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693048411] [2020-10-22 00:35:49,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:35:49,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:35:49,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [985440803] [2020-10-22 00:35:49,497 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:35:49,498 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:35:49,500 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 23 transitions. [2020-10-22 00:35:49,500 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:35:49,563 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:35:49,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:35:49,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:35:49,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:35:49,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:35:49,565 INFO L87 Difference]: Start difference. First operand 234 states and 640 transitions. Second operand 5 states. [2020-10-22 00:35:49,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:35:49,633 INFO L93 Difference]: Finished difference Result 250 states and 660 transitions. [2020-10-22 00:35:49,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 00:35:49,633 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-22 00:35:49,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:35:49,635 INFO L225 Difference]: With dead ends: 250 [2020-10-22 00:35:49,635 INFO L226 Difference]: Without dead ends: 218 [2020-10-22 00:35:49,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:35:49,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-22 00:35:49,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-22 00:35:49,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-22 00:35:49,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 588 transitions. [2020-10-22 00:35:49,647 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 588 transitions. Word has length 11 [2020-10-22 00:35:49,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:35:49,647 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 588 transitions. [2020-10-22 00:35:49,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:35:49,648 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 588 transitions. [2020-10-22 00:35:49,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 00:35:49,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:35:49,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:35:49,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 00:35:49,650 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:35:49,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:35:49,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1329445606, now seen corresponding path program 1 times [2020-10-22 00:35:49,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:35:49,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414897777] [2020-10-22 00:35:49,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:35:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:35:49,701 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 00:35:49,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414897777] [2020-10-22 00:35:49,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:35:49,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:35:49,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [419390493] [2020-10-22 00:35:49,702 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:35:49,704 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:35:49,706 INFO L252 McrAutomatonBuilder]: Finished intersection with 32 states and 56 transitions. [2020-10-22 00:35:49,706 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:35:49,931 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:35:49,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:35:49,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:35:49,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:35:49,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:35:49,932 INFO L87 Difference]: Start difference. First operand 218 states and 588 transitions. Second operand 5 states. [2020-10-22 00:35:49,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:35:49,972 INFO L93 Difference]: Finished difference Result 266 states and 698 transitions. [2020-10-22 00:35:49,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 00:35:49,972 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-22 00:35:49,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:35:49,973 INFO L225 Difference]: With dead ends: 266 [2020-10-22 00:35:49,974 INFO L226 Difference]: Without dead ends: 116 [2020-10-22 00:35:49,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-22 00:35:49,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-22 00:35:49,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-10-22 00:35:49,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-22 00:35:49,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 278 transitions. [2020-10-22 00:35:49,979 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 278 transitions. Word has length 12 [2020-10-22 00:35:49,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:35:49,979 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 278 transitions. [2020-10-22 00:35:49,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:35:49,979 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 278 transitions. [2020-10-22 00:35:49,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 00:35:49,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:35:49,981 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:35:49,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 00:35:49,981 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:35:49,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:35:49,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1405608924, now seen corresponding path program 1 times [2020-10-22 00:35:49,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:35:49,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935476862] [2020-10-22 00:35:49,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:35:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:35:50,047 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 00:35:50,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935476862] [2020-10-22 00:35:50,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:35:50,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:35:50,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [797585064] [2020-10-22 00:35:50,048 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:35:50,051 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:35:50,055 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 32 transitions. [2020-10-22 00:35:50,056 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:35:50,100 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-22 00:35:50,100 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-22 00:35:50,138 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4605#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-22 00:35:50,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:35:50,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:35:50,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:35:50,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:35:50,140 INFO L87 Difference]: Start difference. First operand 116 states and 278 transitions. Second operand 5 states. [2020-10-22 00:35:50,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:35:50,177 INFO L93 Difference]: Finished difference Result 110 states and 239 transitions. [2020-10-22 00:35:50,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:35:50,177 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-22 00:35:50,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:35:50,178 INFO L225 Difference]: With dead ends: 110 [2020-10-22 00:35:50,178 INFO L226 Difference]: Without dead ends: 70 [2020-10-22 00:35:50,179 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 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 00:35:50,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-22 00:35:50,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-10-22 00:35:50,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-22 00:35:50,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 129 transitions. [2020-10-22 00:35:50,182 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 129 transitions. Word has length 14 [2020-10-22 00:35:50,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:35:50,182 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 129 transitions. [2020-10-22 00:35:50,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:35:50,182 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 129 transitions. [2020-10-22 00:35:50,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 00:35:50,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:35:50,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:35:50,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 00:35:50,184 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:35:50,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:35:50,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1628487690, now seen corresponding path program 1 times [2020-10-22 00:35:50,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:35:50,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314940207] [2020-10-22 00:35:50,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:35:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:35:50,289 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 00:35:50,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314940207] [2020-10-22 00:35:50,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:35:50,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-22 00:35:50,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2107371556] [2020-10-22 00:35:50,291 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:35:50,292 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:35:50,296 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 38 transitions. [2020-10-22 00:35:50,297 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:35:50,302 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-22 00:35:50,302 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-22 00:35:50,455 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [4866#(not (= 3 ~__unbuffered_cnt~0)), 4867#(not (= ~__unbuffered_cnt~0 2)), 4868#(not (= ~__unbuffered_cnt~0 1)), 4869#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 00:35:50,456 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 00:35:50,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:35:50,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 00:35:50,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-22 00:35:50,457 INFO L87 Difference]: Start difference. First operand 70 states and 129 transitions. Second operand 10 states. [2020-10-22 00:35:50,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:35:50,520 INFO L93 Difference]: Finished difference Result 63 states and 113 transitions. [2020-10-22 00:35:50,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 00:35:50,520 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 00:35:50,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:35:50,521 INFO L225 Difference]: With dead ends: 63 [2020-10-22 00:35:50,521 INFO L226 Difference]: Without dead ends: 55 [2020-10-22 00:35:50,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-10-22 00:35:50,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-22 00:35:50,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-22 00:35:50,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-22 00:35:50,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-22 00:35:50,525 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 16 [2020-10-22 00:35:50,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:35:50,525 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-22 00:35:50,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 00:35:50,525 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-22 00:35:50,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 00:35:50,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:35:50,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:35:50,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 00:35:50,527 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:35:50,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:35:50,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1397206146, now seen corresponding path program 1 times [2020-10-22 00:35:50,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:35:50,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609344923] [2020-10-22 00:35:50,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:35:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:35:50,612 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 00:35:50,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609344923] [2020-10-22 00:35:50,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:35:50,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 00:35:50,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1762145936] [2020-10-22 00:35:50,613 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:35:50,616 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:35:50,621 INFO L252 McrAutomatonBuilder]: Finished intersection with 31 states and 42 transitions. [2020-10-22 00:35:50,621 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:35:50,713 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:35:50,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:35:50,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:35:50,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:35:50,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:35:50,714 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 5 states. [2020-10-22 00:35:50,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:35:50,746 INFO L93 Difference]: Finished difference Result 65 states and 113 transitions. [2020-10-22 00:35:50,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:35:50,746 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-22 00:35:50,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:35:50,747 INFO L225 Difference]: With dead ends: 65 [2020-10-22 00:35:50,747 INFO L226 Difference]: Without dead ends: 39 [2020-10-22 00:35:50,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:35:50,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-22 00:35:50,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-22 00:35:50,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-22 00:35:50,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 63 transitions. [2020-10-22 00:35:50,751 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 63 transitions. Word has length 18 [2020-10-22 00:35:50,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:35:50,751 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 63 transitions. [2020-10-22 00:35:50,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:35:50,751 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 63 transitions. [2020-10-22 00:35:50,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 00:35:50,752 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:35:50,752 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:35:50,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 00:35:50,753 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:35:50,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:35:50,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1171950116, now seen corresponding path program 2 times [2020-10-22 00:35:50,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:35:50,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466706218] [2020-10-22 00:35:50,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:35:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:35:50,869 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 00:35:50,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466706218] [2020-10-22 00:35:50,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:35:50,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 00:35:50,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [554208122] [2020-10-22 00:35:50,870 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:35:50,874 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:35:50,880 INFO L252 McrAutomatonBuilder]: Finished intersection with 25 states and 30 transitions. [2020-10-22 00:35:50,880 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:35:50,967 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [5211#(and (= ~__unbuffered_p0_EBX~0 1) (<= ~__unbuffered_cnt~0 0) (<= 0 ~__unbuffered_cnt~0))] [2020-10-22 00:35:50,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-22 00:35:50,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:35:50,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-22 00:35:50,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-22 00:35:50,968 INFO L87 Difference]: Start difference. First operand 39 states and 63 transitions. Second operand 11 states. [2020-10-22 00:35:51,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:35:51,122 INFO L93 Difference]: Finished difference Result 57 states and 91 transitions. [2020-10-22 00:35:51,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-22 00:35:51,122 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2020-10-22 00:35:51,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:35:51,123 INFO L225 Difference]: With dead ends: 57 [2020-10-22 00:35:51,123 INFO L226 Difference]: Without dead ends: 35 [2020-10-22 00:35:51,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-10-22 00:35:51,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-22 00:35:51,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2020-10-22 00:35:51,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-22 00:35:51,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 49 transitions. [2020-10-22 00:35:51,126 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 49 transitions. Word has length 18 [2020-10-22 00:35:51,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:35:51,126 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 49 transitions. [2020-10-22 00:35:51,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-22 00:35:51,126 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2020-10-22 00:35:51,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 00:35:51,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:35:51,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:35:51,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-22 00:35:51,127 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:35:51,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:35:51,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1333208262, now seen corresponding path program 3 times [2020-10-22 00:35:51,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:35:51,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840345759] [2020-10-22 00:35:51,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:35:51,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:35:51,181 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 00:35:51,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840345759] [2020-10-22 00:35:51,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:35:51,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:35:51,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1195202082] [2020-10-22 00:35:51,183 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:35:51,185 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:35:51,189 INFO L252 McrAutomatonBuilder]: Finished intersection with 25 states and 30 transitions. [2020-10-22 00:35:51,189 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:35:51,252 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:35:51,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:35:51,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:35:51,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:35:51,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:35:51,254 INFO L87 Difference]: Start difference. First operand 33 states and 49 transitions. Second operand 5 states. [2020-10-22 00:35:51,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:35:51,279 INFO L93 Difference]: Finished difference Result 32 states and 48 transitions. [2020-10-22 00:35:51,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:35:51,279 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-22 00:35:51,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:35:51,280 INFO L225 Difference]: With dead ends: 32 [2020-10-22 00:35:51,280 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 00:35:51,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:35:51,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 00:35:51,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 00:35:51,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 00:35:51,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 00:35:51,281 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-22 00:35:51,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:35:51,282 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 00:35:51,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:35:51,282 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 00:35:51,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 00:35:51,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-22 00:35:51,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 12:35:51 BasicIcfg [2020-10-22 00:35:51,286 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 00:35:51,288 INFO L168 Benchmark]: Toolchain (without parser) took 6007.66 ms. Allocated memory was 139.5 MB in the beginning and 287.3 MB in the end (delta: 147.8 MB). Free memory was 100.5 MB in the beginning and 104.8 MB in the end (delta: -4.3 MB). Peak memory consumption was 143.6 MB. Max. memory is 7.1 GB. [2020-10-22 00:35:51,289 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-22 00:35:51,290 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.16 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 99.7 MB in the beginning and 156.0 MB in the end (delta: -56.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-10-22 00:35:51,291 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.41 ms. Allocated memory is still 201.9 MB. Free memory was 156.0 MB in the beginning and 154.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 00:35:51,292 INFO L168 Benchmark]: Boogie Preprocessor took 25.42 ms. Allocated memory is still 201.9 MB. Free memory was 154.0 MB in the beginning and 152.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 00:35:51,292 INFO L168 Benchmark]: RCFGBuilder took 471.67 ms. Allocated memory is still 201.9 MB. Free memory was 152.1 MB in the beginning and 127.7 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-10-22 00:35:51,293 INFO L168 Benchmark]: TraceAbstraction took 4758.23 ms. Allocated memory was 201.9 MB in the beginning and 287.3 MB in the end (delta: 85.5 MB). Free memory was 127.7 MB in the beginning and 104.8 MB in the end (delta: 22.9 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2020-10-22 00:35:51,300 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 695.16 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 99.7 MB in the beginning and 156.0 MB in the end (delta: -56.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.41 ms. Allocated memory is still 201.9 MB. Free memory was 156.0 MB in the beginning and 154.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.42 ms. Allocated memory is still 201.9 MB. Free memory was 154.0 MB in the beginning and 152.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 471.67 ms. Allocated memory is still 201.9 MB. Free memory was 152.1 MB in the beginning and 127.7 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4758.23 ms. Allocated memory was 201.9 MB in the beginning and 287.3 MB in the end (delta: 85.5 MB). Free memory was 127.7 MB in the beginning and 104.8 MB in the end (delta: 22.9 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 762 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 43 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.8s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 70 TotalNumberOfCompositions, 2779 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: 4.6s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 199 SDtfs, 251 SDslu, 389 SDs, 0 SdLazy, 270 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 70 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 6002 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...