/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:18:02,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:18:02,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:18:02,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:18:02,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:18:02,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:18:02,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:18:02,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:18:02,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:18:02,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:18:02,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:18:02,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:18:02,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:18:02,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:18:02,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:18:02,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:18:02,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:18:02,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:18:02,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:18:02,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:18:02,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:18:02,846 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:18:02,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:18:02,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:18:02,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 22:18:02,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 22:18:02,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 22:18:02,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 22:18:02,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 22:18:02,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 22:18:02,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:18:02,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:18:02,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:18:02,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:18:02,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:18:02,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:18:02,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:18:02,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:18:02,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:18:02,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:18:02,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:18:02,884 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-10-15 22:18:02,923 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:18:02,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:18:02,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:18:02,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:18:02,925 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:18:02,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:18:02,926 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:18:02,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:18:02,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:18:02,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:18:02,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:18:02,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:18:02,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:18:02,929 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:18:02,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:18:02,929 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:18:02,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:18:02,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:18:02,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:18:02,930 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:18:02,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:18:02,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:18:02,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:18:02,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:18:02,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:18:02,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:18:02,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:18:02,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:18:02,932 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:18:03,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:18:03,269 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:18:03,274 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:18:03,281 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:18:03,281 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:18:03,282 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc.i [2020-10-15 22:18:03,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68fa4572/e77576f7165842e3bdc5dcd3cb6f6375/FLAGc4e328b54 [2020-10-15 22:18:03,895 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:18:03,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc.i [2020-10-15 22:18:03,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68fa4572/e77576f7165842e3bdc5dcd3cb6f6375/FLAGc4e328b54 [2020-10-15 22:18:04,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d68fa4572/e77576f7165842e3bdc5dcd3cb6f6375 [2020-10-15 22:18:04,205 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:18:04,207 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:18:04,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:18:04,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:18:04,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:18:04,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:18:04" (1/1) ... [2020-10-15 22:18:04,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e86d97c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:04, skipping insertion in model container [2020-10-15 22:18:04,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:18:04" (1/1) ... [2020-10-15 22:18:04,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:18:04,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:18:04,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:18:04,814 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:18:04,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:18:04,959 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:18:04,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:04 WrapperNode [2020-10-15 22:18:04,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:18:04,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:18:04,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:18:04,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:18:04,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:04" (1/1) ... [2020-10-15 22:18:05,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:04" (1/1) ... [2020-10-15 22:18:05,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:18:05,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:18:05,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:18:05,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:18:05,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:04" (1/1) ... [2020-10-15 22:18:05,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:04" (1/1) ... [2020-10-15 22:18:05,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:04" (1/1) ... [2020-10-15 22:18:05,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:04" (1/1) ... [2020-10-15 22:18:05,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:04" (1/1) ... [2020-10-15 22:18:05,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:04" (1/1) ... [2020-10-15 22:18:05,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:04" (1/1) ... [2020-10-15 22:18:05,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:18:05,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:18:05,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:18:05,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:18:05,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:04" (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 22:18:05,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:18:05,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:18:05,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:18:05,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:18:05,125 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:18:05,125 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:18:05,125 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:18:05,125 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:18:05,125 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 22:18:05,125 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 22:18:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:18:05,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:18:05,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:18:05,133 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 22:18:05,453 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:18:05,453 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 22:18:05,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:18:05 BoogieIcfgContainer [2020-10-15 22:18:05,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:18:05,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:18:05,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:18:05,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:18:05,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:18:04" (1/3) ... [2020-10-15 22:18:05,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7217c56c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:18:05, skipping insertion in model container [2020-10-15 22:18:05,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:04" (2/3) ... [2020-10-15 22:18:05,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7217c56c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:18:05, skipping insertion in model container [2020-10-15 22:18:05,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:18:05" (3/3) ... [2020-10-15 22:18:05,464 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_pso.oepc.i [2020-10-15 22:18:05,479 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:18:05,479 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:18:05,487 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:18:05,488 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:18:05,521 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,521 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,522 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,522 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,523 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,523 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,524 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,524 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,524 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,524 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,525 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,525 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,526 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,526 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,526 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,526 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,527 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,527 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,531 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,531 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,532 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,532 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,545 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,545 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,545 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,555 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,555 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,555 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,556 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:05,577 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 22:18:05,603 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:18:05,603 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:18:05,603 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:18:05,604 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:18:05,604 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:18:05,604 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:18:05,604 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:18:05,604 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:18:05,619 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:18:05,622 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-15 22:18:05,625 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-15 22:18:05,627 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-15 22:18:05,673 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-15 22:18:05,673 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:18:05,679 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-15 22:18:05,682 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 22:18:07,308 INFO L132 LiptonReduction]: Checked pairs total: 2520 [2020-10-15 22:18:07,308 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-15 22:18:07,316 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-10-15 22:18:07,362 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-15 22:18:07,365 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-15 22:18:07,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 22:18:07,391 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:18:07,392 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:18:07,392 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:18:07,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:18:07,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1626757645, now seen corresponding path program 1 times [2020-10-15 22:18:07,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:18:07,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579911749] [2020-10-15 22:18:07,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:18:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:18:07,662 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 22:18:07,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579911749] [2020-10-15 22:18:07,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:18:07,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:18:07,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067619625] [2020-10-15 22:18:07,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:18:07,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:18:07,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:18:07,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:18:07,689 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-15 22:18:07,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:18:07,735 INFO L93 Difference]: Finished difference Result 266 states and 752 transitions. [2020-10-15 22:18:07,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:18:07,737 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 22:18:07,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:18:07,763 INFO L225 Difference]: With dead ends: 266 [2020-10-15 22:18:07,764 INFO L226 Difference]: Without dead ends: 202 [2020-10-15 22:18:07,765 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 22:18:07,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-15 22:18:07,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-15 22:18:07,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-15 22:18:07,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-15 22:18:07,843 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 8 [2020-10-15 22:18:07,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:18:07,845 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-15 22:18:07,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:18:07,845 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-15 22:18:07,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:18:07,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:18:07,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:18:07,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:18:07,848 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:18:07,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:18:07,848 INFO L82 PathProgramCache]: Analyzing trace with hash -54559497, now seen corresponding path program 1 times [2020-10-15 22:18:07,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:18:07,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137120919] [2020-10-15 22:18:07,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:18:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:18:07,943 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 22:18:07,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137120919] [2020-10-15 22:18:07,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:18:07,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:18:07,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207650048] [2020-10-15 22:18:07,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:18:07,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:18:07,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:18:07,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:18:07,948 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-15 22:18:07,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:18:07,969 INFO L93 Difference]: Finished difference Result 266 states and 704 transitions. [2020-10-15 22:18:07,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:18:07,970 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-15 22:18:07,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:18:07,972 INFO L225 Difference]: With dead ends: 266 [2020-10-15 22:18:07,972 INFO L226 Difference]: Without dead ends: 140 [2020-10-15 22:18:07,973 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 22:18:07,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-15 22:18:07,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-10-15 22:18:07,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-15 22:18:07,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 362 transitions. [2020-10-15 22:18:07,988 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 362 transitions. Word has length 10 [2020-10-15 22:18:07,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:18:07,988 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 362 transitions. [2020-10-15 22:18:07,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:18:07,989 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions. [2020-10-15 22:18:07,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 22:18:07,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:18:07,990 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:18:07,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:18:07,991 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:18:07,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:18:07,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1691362226, now seen corresponding path program 1 times [2020-10-15 22:18:07,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:18:07,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233907173] [2020-10-15 22:18:07,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:18:08,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:18:08,080 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 22:18:08,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233907173] [2020-10-15 22:18:08,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:18:08,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:18:08,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640909652] [2020-10-15 22:18:08,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:18:08,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:18:08,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:18:08,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:18:08,083 INFO L87 Difference]: Start difference. First operand 140 states and 362 transitions. Second operand 4 states. [2020-10-15 22:18:08,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:18:08,122 INFO L93 Difference]: Finished difference Result 165 states and 389 transitions. [2020-10-15 22:18:08,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:18:08,122 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 22:18:08,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:18:08,124 INFO L225 Difference]: With dead ends: 165 [2020-10-15 22:18:08,124 INFO L226 Difference]: Without dead ends: 113 [2020-10-15 22:18:08,125 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 22:18:08,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-15 22:18:08,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-10-15 22:18:08,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-15 22:18:08,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 257 transitions. [2020-10-15 22:18:08,135 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 257 transitions. Word has length 11 [2020-10-15 22:18:08,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:18:08,135 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 257 transitions. [2020-10-15 22:18:08,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:18:08,136 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions. [2020-10-15 22:18:08,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:18:08,137 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:18:08,137 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:18:08,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:18:08,137 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:18:08,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:18:08,138 INFO L82 PathProgramCache]: Analyzing trace with hash -891715752, now seen corresponding path program 1 times [2020-10-15 22:18:08,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:18:08,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60533811] [2020-10-15 22:18:08,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:18:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:18:08,213 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 22:18:08,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60533811] [2020-10-15 22:18:08,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:18:08,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:18:08,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388688923] [2020-10-15 22:18:08,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:18:08,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:18:08,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:18:08,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:18:08,215 INFO L87 Difference]: Start difference. First operand 113 states and 257 transitions. Second operand 5 states. [2020-10-15 22:18:08,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:18:08,255 INFO L93 Difference]: Finished difference Result 111 states and 232 transitions. [2020-10-15 22:18:08,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:18:08,255 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-15 22:18:08,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:18:08,256 INFO L225 Difference]: With dead ends: 111 [2020-10-15 22:18:08,257 INFO L226 Difference]: Without dead ends: 80 [2020-10-15 22:18:08,257 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 22:18:08,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-15 22:18:08,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-15 22:18:08,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-15 22:18:08,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 159 transitions. [2020-10-15 22:18:08,263 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 159 transitions. Word has length 12 [2020-10-15 22:18:08,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:18:08,263 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 159 transitions. [2020-10-15 22:18:08,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:18:08,264 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions. [2020-10-15 22:18:08,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:18:08,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:18:08,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:18:08,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:18:08,265 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:18:08,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:18:08,266 INFO L82 PathProgramCache]: Analyzing trace with hash 2053094164, now seen corresponding path program 1 times [2020-10-15 22:18:08,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:18:08,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219732164] [2020-10-15 22:18:08,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:18:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:18:08,344 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 22:18:08,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219732164] [2020-10-15 22:18:08,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:18:08,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 22:18:08,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144424671] [2020-10-15 22:18:08,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 22:18:08,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:18:08,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 22:18:08,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:18:08,346 INFO L87 Difference]: Start difference. First operand 80 states and 159 transitions. Second operand 6 states. [2020-10-15 22:18:08,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:18:08,393 INFO L93 Difference]: Finished difference Result 75 states and 147 transitions. [2020-10-15 22:18:08,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:18:08,393 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-15 22:18:08,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:18:08,394 INFO L225 Difference]: With dead ends: 75 [2020-10-15 22:18:08,394 INFO L226 Difference]: Without dead ends: 66 [2020-10-15 22:18:08,395 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 22:18:08,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-15 22:18:08,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-15 22:18:08,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-15 22:18:08,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 131 transitions. [2020-10-15 22:18:08,399 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 131 transitions. Word has length 14 [2020-10-15 22:18:08,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:18:08,400 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 131 transitions. [2020-10-15 22:18:08,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 22:18:08,400 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2020-10-15 22:18:08,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:18:08,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:18:08,401 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 22:18:08,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:18:08,402 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:18:08,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:18:08,402 INFO L82 PathProgramCache]: Analyzing trace with hash -913032564, now seen corresponding path program 1 times [2020-10-15 22:18:08,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:18:08,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316907263] [2020-10-15 22:18:08,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:18:08,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:18:08,458 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 22:18:08,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316907263] [2020-10-15 22:18:08,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:18:08,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:18:08,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440983294] [2020-10-15 22:18:08,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:18:08,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:18:08,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:18:08,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:18:08,461 INFO L87 Difference]: Start difference. First operand 66 states and 131 transitions. Second operand 4 states. [2020-10-15 22:18:08,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:18:08,486 INFO L93 Difference]: Finished difference Result 85 states and 165 transitions. [2020-10-15 22:18:08,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:18:08,486 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-15 22:18:08,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:18:08,487 INFO L225 Difference]: With dead ends: 85 [2020-10-15 22:18:08,487 INFO L226 Difference]: Without dead ends: 48 [2020-10-15 22:18:08,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:18:08,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-15 22:18:08,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-15 22:18:08,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-15 22:18:08,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions. [2020-10-15 22:18:08,496 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 17 [2020-10-15 22:18:08,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:18:08,496 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions. [2020-10-15 22:18:08,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:18:08,496 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2020-10-15 22:18:08,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:18:08,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:18:08,497 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 22:18:08,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 22:18:08,498 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:18:08,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:18:08,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1376526520, now seen corresponding path program 2 times [2020-10-15 22:18:08,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:18:08,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365092451] [2020-10-15 22:18:08,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:18:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:18:08,554 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 22:18:08,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365092451] [2020-10-15 22:18:08,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:18:08,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:18:08,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982934209] [2020-10-15 22:18:08,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:18:08,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:18:08,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:18:08,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:18:08,557 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 4 states. [2020-10-15 22:18:08,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:18:08,581 INFO L93 Difference]: Finished difference Result 73 states and 130 transitions. [2020-10-15 22:18:08,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:18:08,582 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-15 22:18:08,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:18:08,582 INFO L225 Difference]: With dead ends: 73 [2020-10-15 22:18:08,582 INFO L226 Difference]: Without dead ends: 42 [2020-10-15 22:18:08,583 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 22:18:08,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-15 22:18:08,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-15 22:18:08,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-15 22:18:08,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 71 transitions. [2020-10-15 22:18:08,586 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 71 transitions. Word has length 17 [2020-10-15 22:18:08,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:18:08,586 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 71 transitions. [2020-10-15 22:18:08,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:18:08,586 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions. [2020-10-15 22:18:08,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:18:08,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:18:08,588 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 22:18:08,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 22:18:08,588 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:18:08,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:18:08,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1323635892, now seen corresponding path program 3 times [2020-10-15 22:18:08,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:18:08,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94138422] [2020-10-15 22:18:08,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:18:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:18:08,656 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 22:18:08,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94138422] [2020-10-15 22:18:08,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:18:08,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:18:08,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050208766] [2020-10-15 22:18:08,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:18:08,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:18:08,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:18:08,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:18:08,660 INFO L87 Difference]: Start difference. First operand 42 states and 71 transitions. Second operand 4 states. [2020-10-15 22:18:08,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:18:08,672 INFO L93 Difference]: Finished difference Result 41 states and 70 transitions. [2020-10-15 22:18:08,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:18:08,672 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-15 22:18:08,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:18:08,673 INFO L225 Difference]: With dead ends: 41 [2020-10-15 22:18:08,673 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 22:18:08,673 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 22:18:08,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 22:18:08,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 22:18:08,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 22:18:08,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 22:18:08,674 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-15 22:18:08,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:18:08,675 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 22:18:08,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:18:08,676 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 22:18:08,676 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 22:18:08,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 22:18:08,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:18:08 BasicIcfg [2020-10-15 22:18:08,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:18:08,690 INFO L168 Benchmark]: Toolchain (without parser) took 4477.38 ms. Allocated memory was 250.6 MB in the beginning and 379.6 MB in the end (delta: 129.0 MB). Free memory was 204.9 MB in the beginning and 246.2 MB in the end (delta: -41.3 MB). Peak memory consumption was 87.7 MB. Max. memory is 14.2 GB. [2020-10-15 22:18:08,691 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 250.6 MB. Free memory is still 227.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:18:08,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 753.25 ms. Allocated memory was 250.6 MB in the beginning and 320.3 MB in the end (delta: 69.7 MB). Free memory was 204.9 MB in the beginning and 271.2 MB in the end (delta: -66.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. [2020-10-15 22:18:08,694 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.11 ms. Allocated memory is still 320.3 MB. Free memory was 271.2 MB in the beginning and 268.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:18:08,696 INFO L168 Benchmark]: Boogie Preprocessor took 26.01 ms. Allocated memory is still 320.3 MB. Free memory was 268.6 MB in the beginning and 266.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:18:08,699 INFO L168 Benchmark]: RCFGBuilder took 392.84 ms. Allocated memory is still 320.3 MB. Free memory was 266.1 MB in the beginning and 244.3 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. [2020-10-15 22:18:08,701 INFO L168 Benchmark]: TraceAbstraction took 3224.98 ms. Allocated memory was 320.3 MB in the beginning and 379.6 MB in the end (delta: 59.2 MB). Free memory was 244.3 MB in the beginning and 246.2 MB in the end (delta: -1.9 MB). Peak memory consumption was 57.3 MB. Max. memory is 14.2 GB. [2020-10-15 22:18:08,707 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 250.6 MB. Free memory is still 227.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 753.25 ms. Allocated memory was 250.6 MB in the beginning and 320.3 MB in the end (delta: 69.7 MB). Free memory was 204.9 MB in the beginning and 271.2 MB in the end (delta: -66.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 74.11 ms. Allocated memory is still 320.3 MB. Free memory was 271.2 MB in the beginning and 268.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.01 ms. Allocated memory is still 320.3 MB. Free memory was 268.6 MB in the beginning and 266.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 392.84 ms. Allocated memory is still 320.3 MB. Free memory was 266.1 MB in the beginning and 244.3 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3224.98 ms. Allocated memory was 320.3 MB in the beginning and 379.6 MB in the end (delta: 59.2 MB). Free memory was 244.3 MB in the beginning and 246.2 MB in the end (delta: -1.9 MB). Peak memory consumption was 57.3 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 837 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 63 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 58 TotalNumberOfCompositions, 2520 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 156 SDtfs, 123 SDslu, 193 SDs, 0 SdLazy, 117 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 3084 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...