/usr/bin/java -Xmx16000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:33:42,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:33:42,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:33:42,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:33:42,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:33:42,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:33:42,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:33:42,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:33:42,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:33:42,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:33:42,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:33:42,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:33:42,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:33:42,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:33:42,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:33:42,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:33:42,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:33:42,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:33:42,935 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:33:42,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:33:42,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:33:42,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:33:42,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:33:42,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:33:42,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 18:33:42,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:33:42,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:33:42,973 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:33:42,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:33:42,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:33:42,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:33:42,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:33:42,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:33:42,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:33:42,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:33:42,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:33:42,982 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 18:33:43,023 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:33:43,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:33:43,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:33:43,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:33:43,025 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:33:43,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:33:43,025 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:33:43,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:33:43,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:33:43,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:33:43,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:33:43,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:33:43,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:33:43,028 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:33:43,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:33:43,028 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:33:43,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:33:43,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:33:43,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:33:43,029 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:33:43,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:33:43,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:33:43,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:33:43,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:33:43,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:33:43,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:33:43,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:33:43,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:33:43,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:33:43,031 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:33:43,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:33:43,355 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:33:43,359 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:33:43,360 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:33:43,363 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:33:43,364 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i [2020-10-15 18:33:43,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85daf7c68/4a6ad227ddd9424685f8db08a1ae0a54/FLAG4ad190d95 [2020-10-15 18:33:43,963 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:33:43,963 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i [2020-10-15 18:33:43,984 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85daf7c68/4a6ad227ddd9424685f8db08a1ae0a54/FLAG4ad190d95 [2020-10-15 18:33:44,173 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85daf7c68/4a6ad227ddd9424685f8db08a1ae0a54 [2020-10-15 18:33:44,183 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:33:44,185 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:33:44,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:33:44,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:33:44,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:33:44,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:33:44" (1/1) ... [2020-10-15 18:33:44,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77f640bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:44, skipping insertion in model container [2020-10-15 18:33:44,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:33:44" (1/1) ... [2020-10-15 18:33:44,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:33:44,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:33:44,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:33:44,666 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:33:44,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:33:44,911 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:33:44,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:44 WrapperNode [2020-10-15 18:33:44,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:33:44,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:33:44,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:33:44,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:33:44,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:44" (1/1) ... [2020-10-15 18:33:44,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:44" (1/1) ... [2020-10-15 18:33:44,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:33:44,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:33:44,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:33:44,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:33:44,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:44" (1/1) ... [2020-10-15 18:33:44,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:44" (1/1) ... [2020-10-15 18:33:44,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:44" (1/1) ... [2020-10-15 18:33:44,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:44" (1/1) ... [2020-10-15 18:33:44,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:44" (1/1) ... [2020-10-15 18:33:44,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:44" (1/1) ... [2020-10-15 18:33:44,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:44" (1/1) ... [2020-10-15 18:33:44,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:33:44,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:33:44,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:33:44,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:33:44,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:44" (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 [2020-10-15 18:33:45,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:33:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:33:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:33:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:33:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:33:45,057 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:33:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:33:45,057 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:33:45,058 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:33:45,058 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:33:45,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:33:45,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:33:45,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:33:45,060 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:33:45,370 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:33:45,371 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:33:45,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:33:45 BoogieIcfgContainer [2020-10-15 18:33:45,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:33:45,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:33:45,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:33:45,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:33:45,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:33:44" (1/3) ... [2020-10-15 18:33:45,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eac90fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:33:45, skipping insertion in model container [2020-10-15 18:33:45,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:33:44" (2/3) ... [2020-10-15 18:33:45,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eac90fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:33:45, skipping insertion in model container [2020-10-15 18:33:45,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:33:45" (3/3) ... [2020-10-15 18:33:45,383 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc.i [2020-10-15 18:33:45,395 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:33:45,395 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:33:45,403 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:33:45,404 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:33:45,449 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,450 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,450 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,451 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,451 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,451 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,452 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,452 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,452 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,453 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,453 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,454 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,454 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,454 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,455 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,455 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,455 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,456 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,460 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,460 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,466 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,467 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,470 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,470 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,470 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,470 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:33:45,486 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 18:33:45,507 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:33:45,507 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:33:45,507 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:33:45,507 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:33:45,508 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:33:45,508 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:33:45,508 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:33:45,508 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:33:45,520 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:33:45,523 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-15 18:33:45,526 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-15 18:33:45,529 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-15 18:33:45,572 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-15 18:33:45,572 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:33:45,577 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-15 18:33:45,580 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 18:33:47,155 INFO L132 LiptonReduction]: Checked pairs total: 2962 [2020-10-15 18:33:47,155 INFO L134 LiptonReduction]: Total number of compositions: 59 [2020-10-15 18:33:47,162 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-15 18:33:47,189 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-15 18:33:47,191 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-15 18:33:47,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 18:33:47,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:47,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:47,201 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:47,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:47,207 INFO L82 PathProgramCache]: Analyzing trace with hash -2122060928, now seen corresponding path program 1 times [2020-10-15 18:33:47,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:47,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119663811] [2020-10-15 18:33:47,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:47,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:47,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119663811] [2020-10-15 18:33:47,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:47,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:33:47,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825838156] [2020-10-15 18:33:47,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:33:47,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:47,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:33:47,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:47,446 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-15 18:33:47,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:47,506 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-15 18:33:47,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:33:47,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 18:33:47,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:47,525 INFO L225 Difference]: With dead ends: 282 [2020-10-15 18:33:47,525 INFO L226 Difference]: Without dead ends: 218 [2020-10-15 18:33:47,527 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 [2020-10-15 18:33:47,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-15 18:33:47,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-15 18:33:47,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-15 18:33:47,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-15 18:33:47,598 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-15 18:33:47,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:47,599 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-15 18:33:47,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:33:47,600 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-15 18:33:47,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:33:47,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:47,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:47,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:33:47,602 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:47,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:47,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1372085576, now seen corresponding path program 1 times [2020-10-15 18:33:47,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:47,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900110748] [2020-10-15 18:33:47,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:47,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:47,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900110748] [2020-10-15 18:33:47,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:47,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:33:47,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074025506] [2020-10-15 18:33:47,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:33:47,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:47,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:33:47,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:47,714 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-10-15 18:33:47,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:47,733 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-10-15 18:33:47,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:33:47,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-15 18:33:47,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:47,736 INFO L225 Difference]: With dead ends: 202 [2020-10-15 18:33:47,737 INFO L226 Difference]: Without dead ends: 202 [2020-10-15 18:33:47,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:47,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-15 18:33:47,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-15 18:33:47,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-15 18:33:47,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-15 18:33:47,773 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-10-15 18:33:47,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:47,773 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-15 18:33:47,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:33:47,774 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-15 18:33:47,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 18:33:47,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:47,775 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:47,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:33:47,776 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:47,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:47,776 INFO L82 PathProgramCache]: Analyzing trace with hash 365373016, now seen corresponding path program 1 times [2020-10-15 18:33:47,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:47,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820441514] [2020-10-15 18:33:47,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:47,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:47,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:47,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820441514] [2020-10-15 18:33:47,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:47,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:33:47,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148514982] [2020-10-15 18:33:47,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:33:47,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:47,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:33:47,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:47,819 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-15 18:33:47,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:47,828 INFO L93 Difference]: Finished difference Result 198 states and 530 transitions. [2020-10-15 18:33:47,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:33:47,829 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-15 18:33:47,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:47,831 INFO L225 Difference]: With dead ends: 198 [2020-10-15 18:33:47,832 INFO L226 Difference]: Without dead ends: 198 [2020-10-15 18:33:47,832 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 [2020-10-15 18:33:47,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-15 18:33:47,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-10-15 18:33:47,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-15 18:33:47,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 530 transitions. [2020-10-15 18:33:47,847 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 530 transitions. Word has length 10 [2020-10-15 18:33:47,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:47,847 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 530 transitions. [2020-10-15 18:33:47,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:33:47,848 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 530 transitions. [2020-10-15 18:33:47,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 18:33:47,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:47,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:47,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:33:47,850 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:47,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:47,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1571968161, now seen corresponding path program 1 times [2020-10-15 18:33:47,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:47,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036871139] [2020-10-15 18:33:47,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:47,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:47,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036871139] [2020-10-15 18:33:47,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:47,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:33:47,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181612688] [2020-10-15 18:33:47,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:33:47,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:47,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:33:47,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:47,898 INFO L87 Difference]: Start difference. First operand 198 states and 530 transitions. Second operand 3 states. [2020-10-15 18:33:47,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:47,905 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-10-15 18:33:47,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:33:47,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-15 18:33:47,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:47,908 INFO L225 Difference]: With dead ends: 192 [2020-10-15 18:33:47,908 INFO L226 Difference]: Without dead ends: 192 [2020-10-15 18:33:47,909 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 [2020-10-15 18:33:47,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-15 18:33:47,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-10-15 18:33:47,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-10-15 18:33:47,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 511 transitions. [2020-10-15 18:33:47,922 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 511 transitions. Word has length 11 [2020-10-15 18:33:47,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:47,922 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 511 transitions. [2020-10-15 18:33:47,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:33:47,922 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-10-15 18:33:47,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:33:47,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:47,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:47,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:33:47,926 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:47,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:47,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1486373385, now seen corresponding path program 1 times [2020-10-15 18:33:47,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:47,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983419286] [2020-10-15 18:33:47,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:47,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:48,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:48,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983419286] [2020-10-15 18:33:48,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:48,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:33:48,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705931662] [2020-10-15 18:33:48,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:33:48,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:48,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:33:48,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:33:48,010 INFO L87 Difference]: Start difference. First operand 192 states and 511 transitions. Second operand 4 states. [2020-10-15 18:33:48,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:48,047 INFO L93 Difference]: Finished difference Result 224 states and 554 transitions. [2020-10-15 18:33:48,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:33:48,047 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 18:33:48,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:48,049 INFO L225 Difference]: With dead ends: 224 [2020-10-15 18:33:48,049 INFO L226 Difference]: Without dead ends: 160 [2020-10-15 18:33:48,050 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 [2020-10-15 18:33:48,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-15 18:33:48,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-10-15 18:33:48,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-10-15 18:33:48,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 383 transitions. [2020-10-15 18:33:48,060 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 383 transitions. Word has length 12 [2020-10-15 18:33:48,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:48,060 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 383 transitions. [2020-10-15 18:33:48,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:33:48,061 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 383 transitions. [2020-10-15 18:33:48,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:33:48,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:48,062 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:48,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:33:48,063 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:48,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:48,063 INFO L82 PathProgramCache]: Analyzing trace with hash 887113091, now seen corresponding path program 1 times [2020-10-15 18:33:48,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:48,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116838276] [2020-10-15 18:33:48,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:48,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:48,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116838276] [2020-10-15 18:33:48,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:48,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:33:48,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909200169] [2020-10-15 18:33:48,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:33:48,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:48,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:33:48,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:33:48,139 INFO L87 Difference]: Start difference. First operand 160 states and 383 transitions. Second operand 5 states. [2020-10-15 18:33:48,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:48,183 INFO L93 Difference]: Finished difference Result 160 states and 362 transitions. [2020-10-15 18:33:48,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:33:48,183 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 18:33:48,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:48,184 INFO L225 Difference]: With dead ends: 160 [2020-10-15 18:33:48,185 INFO L226 Difference]: Without dead ends: 123 [2020-10-15 18:33:48,185 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:33:48,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-10-15 18:33:48,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-10-15 18:33:48,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-15 18:33:48,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-10-15 18:33:48,192 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 13 [2020-10-15 18:33:48,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:48,192 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-10-15 18:33:48,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:33:48,193 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-10-15 18:33:48,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:33:48,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:48,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:48,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:33:48,194 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:48,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:48,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1920279248, now seen corresponding path program 1 times [2020-10-15 18:33:48,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:48,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448288056] [2020-10-15 18:33:48,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:48,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:48,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448288056] [2020-10-15 18:33:48,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:48,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:33:48,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776331501] [2020-10-15 18:33:48,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:33:48,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:48,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:33:48,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:48,234 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 3 states. [2020-10-15 18:33:48,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:48,245 INFO L93 Difference]: Finished difference Result 155 states and 330 transitions. [2020-10-15 18:33:48,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:33:48,245 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-15 18:33:48,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:48,246 INFO L225 Difference]: With dead ends: 155 [2020-10-15 18:33:48,247 INFO L226 Difference]: Without dead ends: 124 [2020-10-15 18:33:48,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:33:48,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-15 18:33:48,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2020-10-15 18:33:48,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-15 18:33:48,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 257 transitions. [2020-10-15 18:33:48,253 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 257 transitions. Word has length 14 [2020-10-15 18:33:48,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:48,253 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 257 transitions. [2020-10-15 18:33:48,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:33:48,253 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 257 transitions. [2020-10-15 18:33:48,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:33:48,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:48,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:48,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:33:48,255 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:48,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:48,256 INFO L82 PathProgramCache]: Analyzing trace with hash 451653261, now seen corresponding path program 1 times [2020-10-15 18:33:48,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:48,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887455980] [2020-10-15 18:33:48,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:48,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:48,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887455980] [2020-10-15 18:33:48,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:48,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:33:48,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743021683] [2020-10-15 18:33:48,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:33:48,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:48,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:33:48,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:33:48,296 INFO L87 Difference]: Start difference. First operand 122 states and 257 transitions. Second operand 4 states. [2020-10-15 18:33:48,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:48,315 INFO L93 Difference]: Finished difference Result 154 states and 308 transitions. [2020-10-15 18:33:48,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:33:48,316 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-15 18:33:48,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:48,317 INFO L225 Difference]: With dead ends: 154 [2020-10-15 18:33:48,317 INFO L226 Difference]: Without dead ends: 116 [2020-10-15 18:33:48,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:33:48,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-15 18:33:48,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-10-15 18:33:48,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-15 18:33:48,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 222 transitions. [2020-10-15 18:33:48,322 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 222 transitions. Word has length 15 [2020-10-15 18:33:48,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:48,322 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 222 transitions. [2020-10-15 18:33:48,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:33:48,322 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 222 transitions. [2020-10-15 18:33:48,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:33:48,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:48,324 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:48,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 18:33:48,324 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:48,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:48,325 INFO L82 PathProgramCache]: Analyzing trace with hash -600886075, now seen corresponding path program 1 times [2020-10-15 18:33:48,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:48,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306782059] [2020-10-15 18:33:48,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:48,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:48,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:48,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306782059] [2020-10-15 18:33:48,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:48,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:33:48,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737918862] [2020-10-15 18:33:48,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 18:33:48,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:48,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 18:33:48,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:33:48,389 INFO L87 Difference]: Start difference. First operand 114 states and 222 transitions. Second operand 6 states. [2020-10-15 18:33:48,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:48,438 INFO L93 Difference]: Finished difference Result 110 states and 212 transitions. [2020-10-15 18:33:48,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:33:48,438 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-15 18:33:48,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:48,439 INFO L225 Difference]: With dead ends: 110 [2020-10-15 18:33:48,439 INFO L226 Difference]: Without dead ends: 38 [2020-10-15 18:33:48,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:33:48,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-15 18:33:48,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-15 18:33:48,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-15 18:33:48,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-10-15 18:33:48,442 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 15 [2020-10-15 18:33:48,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:48,442 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-10-15 18:33:48,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 18:33:48,442 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-10-15 18:33:48,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:33:48,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:48,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:48,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 18:33:48,444 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:48,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:48,444 INFO L82 PathProgramCache]: Analyzing trace with hash 13395029, now seen corresponding path program 1 times [2020-10-15 18:33:48,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:48,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403006859] [2020-10-15 18:33:48,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:48,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:48,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403006859] [2020-10-15 18:33:48,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:48,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:33:48,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509406657] [2020-10-15 18:33:48,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:33:48,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:48,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:33:48,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:33:48,480 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 4 states. [2020-10-15 18:33:48,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:48,496 INFO L93 Difference]: Finished difference Result 51 states and 83 transitions. [2020-10-15 18:33:48,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:33:48,496 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-15 18:33:48,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:48,497 INFO L225 Difference]: With dead ends: 51 [2020-10-15 18:33:48,497 INFO L226 Difference]: Without dead ends: 30 [2020-10-15 18:33:48,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:33:48,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-15 18:33:48,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-15 18:33:48,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-15 18:33:48,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-15 18:33:48,499 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-15 18:33:48,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:48,499 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-15 18:33:48,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:33:48,500 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-15 18:33:48,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:33:48,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:33:48,500 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:33:48,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 18:33:48,501 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:33:48,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:33:48,501 INFO L82 PathProgramCache]: Analyzing trace with hash -34011261, now seen corresponding path program 2 times [2020-10-15 18:33:48,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:33:48,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298828427] [2020-10-15 18:33:48,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:33:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:33:48,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:33:48,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298828427] [2020-10-15 18:33:48,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:33:48,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:33:48,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046000686] [2020-10-15 18:33:48,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:33:48,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:33:48,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:33:48,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:33:48,538 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-10-15 18:33:48,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:33:48,550 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-15 18:33:48,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:33:48,551 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-15 18:33:48,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:33:48,552 INFO L225 Difference]: With dead ends: 29 [2020-10-15 18:33:48,552 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:33:48,552 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 [2020-10-15 18:33:48,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:33:48,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:33:48,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:33:48,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:33:48,553 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-15 18:33:48,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:33:48,554 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:33:48,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:33:48,554 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:33:48,554 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:33:48,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 18:33:48,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:33:48 BasicIcfg [2020-10-15 18:33:48,559 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:33:48,561 INFO L168 Benchmark]: Toolchain (without parser) took 4376.19 ms. Allocated memory was 245.9 MB in the beginning and 366.5 MB in the end (delta: 120.6 MB). Free memory was 201.0 MB in the beginning and 218.9 MB in the end (delta: -17.9 MB). Peak memory consumption was 102.6 MB. Max. memory is 14.2 GB. [2020-10-15 18:33:48,562 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 245.9 MB. Free memory is still 222.3 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:33:48,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 726.22 ms. Allocated memory was 245.9 MB in the beginning and 299.4 MB in the end (delta: 53.5 MB). Free memory was 201.0 MB in the beginning and 254.5 MB in the end (delta: -53.5 MB). Peak memory consumption was 33.2 MB. Max. memory is 14.2 GB. [2020-10-15 18:33:48,564 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.12 ms. Allocated memory is still 299.4 MB. Free memory was 254.5 MB in the beginning and 252.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:33:48,564 INFO L168 Benchmark]: Boogie Preprocessor took 27.78 ms. Allocated memory is still 299.4 MB. Free memory was 252.0 MB in the beginning and 249.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:33:48,565 INFO L168 Benchmark]: RCFGBuilder took 387.11 ms. Allocated memory is still 299.4 MB. Free memory was 249.5 MB in the beginning and 227.7 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-15 18:33:48,566 INFO L168 Benchmark]: TraceAbstraction took 3183.53 ms. Allocated memory was 299.4 MB in the beginning and 366.5 MB in the end (delta: 67.1 MB). Free memory was 227.7 MB in the beginning and 218.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 75.8 MB. Max. memory is 14.2 GB. [2020-10-15 18:33:48,569 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 245.9 MB. Free memory is still 222.3 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 726.22 ms. Allocated memory was 245.9 MB in the beginning and 299.4 MB in the end (delta: 53.5 MB). Free memory was 201.0 MB in the beginning and 254.5 MB in the end (delta: -53.5 MB). Peak memory consumption was 33.2 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 46.12 ms. Allocated memory is still 299.4 MB. Free memory was 254.5 MB in the beginning and 252.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 27.78 ms. Allocated memory is still 299.4 MB. Free memory was 252.0 MB in the beginning and 249.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 387.11 ms. Allocated memory is still 299.4 MB. Free memory was 249.5 MB in the beginning and 227.7 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3183.53 ms. Allocated memory was 299.4 MB in the beginning and 366.5 MB in the end (delta: 67.1 MB). Free memory was 227.7 MB in the beginning and 218.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 75.8 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 824 VarBasedMoverChecksPositive, 47 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 58 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 77 PlacesBefore, 31 PlacesAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 59 TotalNumberOfCompositions, 2962 MoverChecksTotal - PositiveResult [Line: 7]: 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 216 SDtfs, 131 SDslu, 232 SDs, 0 SdLazy, 130 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 4600 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...