/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-14 23:35:03,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-14 23:35:03,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-14 23:35:03,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-14 23:35:03,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-14 23:35:03,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-14 23:35:03,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-14 23:35:03,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-14 23:35:03,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-14 23:35:03,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-14 23:35:03,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-14 23:35:03,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-14 23:35:03,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-14 23:35:03,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-14 23:35:03,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-14 23:35:03,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-14 23:35:03,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-14 23:35:03,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-14 23:35:03,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-14 23:35:03,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-14 23:35:03,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-14 23:35:03,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-14 23:35:03,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-14 23:35:03,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-14 23:35:03,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-14 23:35:03,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-14 23:35:03,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-14 23:35:03,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-14 23:35:03,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-14 23:35:03,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-14 23:35:03,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-14 23:35:03,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-14 23:35:03,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-14 23:35:03,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-14 23:35:03,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-14 23:35:03,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-14 23:35:03,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-14 23:35:03,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-14 23:35:03,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-14 23:35:03,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-14 23:35:03,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-14 23:35:03,141 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-14 23:35:03,169 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-14 23:35:03,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-14 23:35:03,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-14 23:35:03,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-14 23:35:03,171 INFO L138 SettingsManager]: * Use SBE=true [2020-09-14 23:35:03,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-14 23:35:03,171 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-14 23:35:03,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-14 23:35:03,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-14 23:35:03,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-14 23:35:03,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-14 23:35:03,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-14 23:35:03,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-14 23:35:03,172 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-14 23:35:03,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-14 23:35:03,173 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-14 23:35:03,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-14 23:35:03,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-14 23:35:03,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-14 23:35:03,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-14 23:35:03,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-14 23:35:03,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-14 23:35:03,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-14 23:35:03,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-14 23:35:03,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-14 23:35:03,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-14 23:35:03,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-14 23:35:03,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-14 23:35:03,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-14 23:35:03,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-14 23:35:03,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-14 23:35:03,611 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-14 23:35:03,617 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-14 23:35:03,619 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-14 23:35:03,619 INFO L275 PluginConnector]: CDTParser initialized [2020-09-14 23:35:03,621 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-09-14 23:35:03,706 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d20213398/e158180ce8724a7d8c80e546d0773472/FLAG74ec8faa3 [2020-09-14 23:35:04,290 INFO L306 CDTParser]: Found 1 translation units. [2020-09-14 23:35:04,291 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-09-14 23:35:04,311 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d20213398/e158180ce8724a7d8c80e546d0773472/FLAG74ec8faa3 [2020-09-14 23:35:04,535 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d20213398/e158180ce8724a7d8c80e546d0773472 [2020-09-14 23:35:04,547 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-14 23:35:04,553 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-14 23:35:04,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-14 23:35:04,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-14 23:35:04,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-14 23:35:04,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 11:35:04" (1/1) ... [2020-09-14 23:35:04,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d953c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:35:04, skipping insertion in model container [2020-09-14 23:35:04,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 11:35:04" (1/1) ... [2020-09-14 23:35:04,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-14 23:35:04,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-14 23:35:05,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-14 23:35:05,230 INFO L203 MainTranslator]: Completed pre-run [2020-09-14 23:35:05,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-14 23:35:05,367 INFO L208 MainTranslator]: Completed translation [2020-09-14 23:35:05,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:35:05 WrapperNode [2020-09-14 23:35:05,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-14 23:35:05,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-14 23:35:05,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-14 23:35:05,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-14 23:35:05,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:35:05" (1/1) ... [2020-09-14 23:35:05,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:35:05" (1/1) ... [2020-09-14 23:35:05,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-14 23:35:05,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-14 23:35:05,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-14 23:35:05,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-14 23:35:05,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:35:05" (1/1) ... [2020-09-14 23:35:05,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:35:05" (1/1) ... [2020-09-14 23:35:05,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:35:05" (1/1) ... [2020-09-14 23:35:05,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:35:05" (1/1) ... [2020-09-14 23:35:05,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:35:05" (1/1) ... [2020-09-14 23:35:05,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:35:05" (1/1) ... [2020-09-14 23:35:05,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:35:05" (1/1) ... [2020-09-14 23:35:05,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-14 23:35:05,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-14 23:35:05,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-14 23:35:05,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-14 23:35:05,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:35:05" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-14 23:35:05,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-14 23:35:05,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-14 23:35:05,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-14 23:35:05,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-14 23:35:05,538 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-14 23:35:05,538 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-14 23:35:05,538 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-14 23:35:05,538 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-14 23:35:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-14 23:35:05,539 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-14 23:35:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-14 23:35:05,539 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-14 23:35:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-14 23:35:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-14 23:35:05,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-14 23:35:05,542 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-14 23:35:05,938 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-14 23:35:05,939 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-14 23:35:05,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 11:35:05 BoogieIcfgContainer [2020-09-14 23:35:05,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-14 23:35:05,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-14 23:35:05,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-14 23:35:05,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-14 23:35:05,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 11:35:04" (1/3) ... [2020-09-14 23:35:05,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78427996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 11:35:05, skipping insertion in model container [2020-09-14 23:35:05,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:35:05" (2/3) ... [2020-09-14 23:35:05,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78427996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 11:35:05, skipping insertion in model container [2020-09-14 23:35:05,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 11:35:05" (3/3) ... [2020-09-14 23:35:05,954 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2020-09-14 23:35:05,965 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-14 23:35:05,966 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-14 23:35:05,976 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-14 23:35:05,977 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-14 23:35:06,014 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,014 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,014 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,015 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,015 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,015 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,016 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,016 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,016 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,017 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,017 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,017 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,018 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,018 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,018 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,019 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,019 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,019 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,020 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,020 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,020 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,021 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,021 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,021 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,026 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,026 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,027 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,027 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,035 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,035 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,035 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,036 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,040 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,041 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,044 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,045 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:35:06,069 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-14 23:35:06,096 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-14 23:35:06,097 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-14 23:35:06,097 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-14 23:35:06,097 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-14 23:35:06,097 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-14 23:35:06,097 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-14 23:35:06,098 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-14 23:35:06,098 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-14 23:35:06,117 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-09-14 23:35:06,119 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-09-14 23:35:06,173 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-09-14 23:35:06,173 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-14 23:35:06,179 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-14 23:35:06,183 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-09-14 23:35:06,208 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-09-14 23:35:06,208 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-14 23:35:06,211 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-14 23:35:06,213 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-09-14 23:35:06,218 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-14 23:35:07,881 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-09-14 23:35:07,947 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2807 [2020-09-14 23:35:07,948 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-09-14 23:35:07,953 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-09-14 23:35:08,038 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-09-14 23:35:08,041 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-09-14 23:35:08,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-14 23:35:08,057 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:35:08,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:35:08,059 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:35:08,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:35:08,069 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-09-14 23:35:08,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:35:08,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348464845] [2020-09-14 23:35:08,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:35:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:35:08,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:35:08,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348464845] [2020-09-14 23:35:08,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:35:08,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 23:35:08,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233168358] [2020-09-14 23:35:08,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-14 23:35:08,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:35:08,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-14 23:35:08,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-14 23:35:08,336 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-09-14 23:35:08,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:35:08,384 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-09-14 23:35:08,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-14 23:35:08,386 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-14 23:35:08,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:35:08,416 INFO L225 Difference]: With dead ends: 850 [2020-09-14 23:35:08,416 INFO L226 Difference]: Without dead ends: 706 [2020-09-14 23:35:08,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-14 23:35:08,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-09-14 23:35:08,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-09-14 23:35:08,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-09-14 23:35:08,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-09-14 23:35:08,558 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-09-14 23:35:08,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:35:08,559 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-09-14 23:35:08,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-14 23:35:08,560 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-09-14 23:35:08,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-14 23:35:08,565 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:35:08,565 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:35:08,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-14 23:35:08,566 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:35:08,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:35:08,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-09-14 23:35:08,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:35:08,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621036634] [2020-09-14 23:35:08,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:35:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:35:08,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:35:08,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621036634] [2020-09-14 23:35:08,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:35:08,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 23:35:08,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163335417] [2020-09-14 23:35:08,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 23:35:08,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:35:08,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 23:35:08,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 23:35:08,719 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-09-14 23:35:08,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:35:08,756 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-09-14 23:35:08,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-14 23:35:08,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-14 23:35:08,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:35:08,763 INFO L225 Difference]: With dead ends: 778 [2020-09-14 23:35:08,764 INFO L226 Difference]: Without dead ends: 634 [2020-09-14 23:35:08,764 INFO L675 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 [2020-09-14 23:35:08,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-09-14 23:35:08,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-09-14 23:35:08,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-09-14 23:35:08,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-09-14 23:35:08,795 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-09-14 23:35:08,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:35:08,795 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-09-14 23:35:08,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 23:35:08,795 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-09-14 23:35:08,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-14 23:35:08,799 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:35:08,799 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:35:08,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-14 23:35:08,799 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:35:08,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:35:08,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1606888751, now seen corresponding path program 1 times [2020-09-14 23:35:08,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:35:08,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460350542] [2020-09-14 23:35:08,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:35:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:35:08,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:35:08,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460350542] [2020-09-14 23:35:08,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:35:08,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 23:35:08,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482072392] [2020-09-14 23:35:08,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 23:35:08,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:35:08,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 23:35:08,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 23:35:08,966 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 4 states. [2020-09-14 23:35:08,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:35:08,993 INFO L93 Difference]: Finished difference Result 688 states and 2256 transitions. [2020-09-14 23:35:08,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-14 23:35:08,994 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-14 23:35:08,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:35:08,999 INFO L225 Difference]: With dead ends: 688 [2020-09-14 23:35:08,999 INFO L226 Difference]: Without dead ends: 580 [2020-09-14 23:35:09,000 INFO L675 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 [2020-09-14 23:35:09,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-09-14 23:35:09,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-09-14 23:35:09,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-09-14 23:35:09,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 1932 transitions. [2020-09-14 23:35:09,022 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 1932 transitions. Word has length 12 [2020-09-14 23:35:09,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:35:09,023 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 1932 transitions. [2020-09-14 23:35:09,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 23:35:09,023 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 1932 transitions. [2020-09-14 23:35:09,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-14 23:35:09,025 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:35:09,025 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:35:09,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-14 23:35:09,025 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:35:09,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:35:09,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1718865431, now seen corresponding path program 1 times [2020-09-14 23:35:09,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:35:09,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939859262] [2020-09-14 23:35:09,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:35:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:35:09,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:35:09,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939859262] [2020-09-14 23:35:09,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:35:09,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 23:35:09,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698777603] [2020-09-14 23:35:09,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-14 23:35:09,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:35:09,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-14 23:35:09,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:35:09,099 INFO L87 Difference]: Start difference. First operand 580 states and 1932 transitions. Second operand 5 states. [2020-09-14 23:35:09,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:35:09,157 INFO L93 Difference]: Finished difference Result 799 states and 2597 transitions. [2020-09-14 23:35:09,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-14 23:35:09,158 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-14 23:35:09,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:35:09,161 INFO L225 Difference]: With dead ends: 799 [2020-09-14 23:35:09,161 INFO L226 Difference]: Without dead ends: 430 [2020-09-14 23:35:09,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-14 23:35:09,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-09-14 23:35:09,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2020-09-14 23:35:09,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-09-14 23:35:09,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1344 transitions. [2020-09-14 23:35:09,178 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1344 transitions. Word has length 13 [2020-09-14 23:35:09,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:35:09,178 INFO L479 AbstractCegarLoop]: Abstraction has 430 states and 1344 transitions. [2020-09-14 23:35:09,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-14 23:35:09,178 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1344 transitions. [2020-09-14 23:35:09,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-14 23:35:09,179 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:35:09,180 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:35:09,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-14 23:35:09,180 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:35:09,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:35:09,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1251334402, now seen corresponding path program 1 times [2020-09-14 23:35:09,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:35:09,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352708814] [2020-09-14 23:35:09,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:35:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:35:09,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:35:09,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352708814] [2020-09-14 23:35:09,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:35:09,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 23:35:09,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116408646] [2020-09-14 23:35:09,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-14 23:35:09,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:35:09,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-14 23:35:09,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:35:09,274 INFO L87 Difference]: Start difference. First operand 430 states and 1344 transitions. Second operand 5 states. [2020-09-14 23:35:09,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:35:09,344 INFO L93 Difference]: Finished difference Result 556 states and 1707 transitions. [2020-09-14 23:35:09,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-14 23:35:09,344 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-14 23:35:09,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:35:09,347 INFO L225 Difference]: With dead ends: 556 [2020-09-14 23:35:09,347 INFO L226 Difference]: Without dead ends: 262 [2020-09-14 23:35:09,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-14 23:35:09,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-09-14 23:35:09,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-09-14 23:35:09,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-14 23:35:09,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-09-14 23:35:09,357 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-09-14 23:35:09,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:35:09,357 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-09-14 23:35:09,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-14 23:35:09,358 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-09-14 23:35:09,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-14 23:35:09,359 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:35:09,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:35:09,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-14 23:35:09,359 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:35:09,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:35:09,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-09-14 23:35:09,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:35:09,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090951002] [2020-09-14 23:35:09,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:35:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:35:09,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:35:09,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090951002] [2020-09-14 23:35:09,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:35:09,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 23:35:09,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372033567] [2020-09-14 23:35:09,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 23:35:09,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:35:09,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 23:35:09,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 23:35:09,490 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 4 states. [2020-09-14 23:35:09,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:35:09,546 INFO L93 Difference]: Finished difference Result 319 states and 873 transitions. [2020-09-14 23:35:09,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-14 23:35:09,547 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-14 23:35:09,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:35:09,550 INFO L225 Difference]: With dead ends: 319 [2020-09-14 23:35:09,550 INFO L226 Difference]: Without dead ends: 238 [2020-09-14 23:35:09,550 INFO L675 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 [2020-09-14 23:35:09,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-14 23:35:09,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-09-14 23:35:09,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-09-14 23:35:09,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 659 transitions. [2020-09-14 23:35:09,563 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 659 transitions. Word has length 15 [2020-09-14 23:35:09,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:35:09,564 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 659 transitions. [2020-09-14 23:35:09,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 23:35:09,564 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 659 transitions. [2020-09-14 23:35:09,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-14 23:35:09,566 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:35:09,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:35:09,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-14 23:35:09,566 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:35:09,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:35:09,567 INFO L82 PathProgramCache]: Analyzing trace with hash -857649028, now seen corresponding path program 1 times [2020-09-14 23:35:09,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:35:09,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394930247] [2020-09-14 23:35:09,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:35:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:35:09,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:35:09,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394930247] [2020-09-14 23:35:09,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:35:09,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-14 23:35:09,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303024919] [2020-09-14 23:35:09,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-14 23:35:09,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:35:09,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-14 23:35:09,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:35:09,712 INFO L87 Difference]: Start difference. First operand 238 states and 659 transitions. Second operand 5 states. [2020-09-14 23:35:09,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:35:09,774 INFO L93 Difference]: Finished difference Result 247 states and 617 transitions. [2020-09-14 23:35:09,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-14 23:35:09,775 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-14 23:35:09,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:35:09,776 INFO L225 Difference]: With dead ends: 247 [2020-09-14 23:35:09,777 INFO L226 Difference]: Without dead ends: 182 [2020-09-14 23:35:09,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-14 23:35:09,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-09-14 23:35:09,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-09-14 23:35:09,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-14 23:35:09,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-09-14 23:35:09,784 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 16 [2020-09-14 23:35:09,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:35:09,784 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-09-14 23:35:09,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-14 23:35:09,784 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-09-14 23:35:09,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-14 23:35:09,785 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:35:09,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:35:09,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-14 23:35:09,786 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:35:09,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:35:09,786 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-09-14 23:35:09,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:35:09,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675766470] [2020-09-14 23:35:09,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:35:09,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:35:09,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:35:09,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675766470] [2020-09-14 23:35:09,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:35:09,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-14 23:35:09,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880813369] [2020-09-14 23:35:09,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-14 23:35:09,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:35:09,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-14 23:35:09,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-14 23:35:09,916 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 6 states. [2020-09-14 23:35:09,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:35:09,994 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-09-14 23:35:09,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-14 23:35:09,995 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-09-14 23:35:09,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:35:09,996 INFO L225 Difference]: With dead ends: 165 [2020-09-14 23:35:09,997 INFO L226 Difference]: Without dead ends: 132 [2020-09-14 23:35:10,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-14 23:35:10,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-09-14 23:35:10,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-09-14 23:35:10,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-09-14 23:35:10,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-09-14 23:35:10,023 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-09-14 23:35:10,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:35:10,024 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-09-14 23:35:10,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-14 23:35:10,024 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-09-14 23:35:10,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-14 23:35:10,025 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:35:10,025 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:35:10,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-14 23:35:10,026 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:35:10,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:35:10,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-09-14 23:35:10,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:35:10,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959258550] [2020-09-14 23:35:10,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:35:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:35:10,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:35:10,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959258550] [2020-09-14 23:35:10,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:35:10,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-14 23:35:10,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470651476] [2020-09-14 23:35:10,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-14 23:35:10,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:35:10,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-14 23:35:10,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-14 23:35:10,153 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 7 states. [2020-09-14 23:35:10,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:35:10,222 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-09-14 23:35:10,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-14 23:35:10,223 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-14 23:35:10,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:35:10,224 INFO L225 Difference]: With dead ends: 121 [2020-09-14 23:35:10,224 INFO L226 Difference]: Without dead ends: 112 [2020-09-14 23:35:10,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-14 23:35:10,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-14 23:35:10,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-09-14 23:35:10,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-14 23:35:10,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-09-14 23:35:10,230 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-09-14 23:35:10,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:35:10,230 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-09-14 23:35:10,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-14 23:35:10,231 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-09-14 23:35:10,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-14 23:35:10,231 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:35:10,231 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:35:10,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-14 23:35:10,232 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:35:10,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:35:10,232 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-09-14 23:35:10,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:35:10,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175355877] [2020-09-14 23:35:10,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:35:10,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:35:10,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:35:10,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175355877] [2020-09-14 23:35:10,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:35:10,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-14 23:35:10,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922418773] [2020-09-14 23:35:10,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-14 23:35:10,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:35:10,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-14 23:35:10,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:35:10,315 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-09-14 23:35:10,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:35:10,352 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-09-14 23:35:10,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-14 23:35:10,353 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-14 23:35:10,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:35:10,354 INFO L225 Difference]: With dead ends: 146 [2020-09-14 23:35:10,354 INFO L226 Difference]: Without dead ends: 52 [2020-09-14 23:35:10,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-14 23:35:10,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-14 23:35:10,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-09-14 23:35:10,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-14 23:35:10,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-09-14 23:35:10,359 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-09-14 23:35:10,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:35:10,359 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-09-14 23:35:10,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-14 23:35:10,360 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-09-14 23:35:10,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-14 23:35:10,360 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:35:10,360 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:35:10,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-14 23:35:10,361 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:35:10,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:35:10,361 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-09-14 23:35:10,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:35:10,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619874010] [2020-09-14 23:35:10,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:35:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:35:10,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:35:10,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619874010] [2020-09-14 23:35:10,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:35:10,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-14 23:35:10,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725656359] [2020-09-14 23:35:10,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-14 23:35:10,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:35:10,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-14 23:35:10,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:35:10,460 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-09-14 23:35:10,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:35:10,488 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-09-14 23:35:10,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-14 23:35:10,489 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-14 23:35:10,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:35:10,489 INFO L225 Difference]: With dead ends: 51 [2020-09-14 23:35:10,489 INFO L226 Difference]: Without dead ends: 0 [2020-09-14 23:35:10,490 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-14 23:35:10,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-14 23:35:10,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-14 23:35:10,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-14 23:35:10,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-14 23:35:10,491 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-09-14 23:35:10,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:35:10,491 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-14 23:35:10,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-14 23:35:10,492 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-14 23:35:10,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-14 23:35:10,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-14 23:35:10,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 11:35:10 BasicIcfg [2020-09-14 23:35:10,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-14 23:35:10,499 INFO L168 Benchmark]: Toolchain (without parser) took 5950.20 ms. Allocated memory was 139.5 MB in the beginning and 288.9 MB in the end (delta: 149.4 MB). Free memory was 101.2 MB in the beginning and 194.6 MB in the end (delta: -93.4 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2020-09-14 23:35:10,501 INFO L168 Benchmark]: CDTParser took 1.42 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-14 23:35:10,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 814.02 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.5 MB in the beginning and 159.8 MB in the end (delta: -59.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2020-09-14 23:35:10,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.28 ms. Allocated memory is still 202.4 MB. Free memory was 159.8 MB in the beginning and 157.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-14 23:35:10,508 INFO L168 Benchmark]: Boogie Preprocessor took 33.20 ms. Allocated memory is still 202.4 MB. Free memory was 157.8 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-14 23:35:10,509 INFO L168 Benchmark]: RCFGBuilder took 483.30 ms. Allocated memory is still 202.4 MB. Free memory was 155.8 MB in the beginning and 132.1 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-09-14 23:35:10,514 INFO L168 Benchmark]: TraceAbstraction took 4551.74 ms. Allocated memory was 202.4 MB in the beginning and 288.9 MB in the end (delta: 86.5 MB). Free memory was 131.5 MB in the beginning and 194.6 MB in the end (delta: -63.1 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-09-14 23:35:10,521 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.42 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 814.02 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.5 MB in the beginning and 159.8 MB in the end (delta: -59.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.28 ms. Allocated memory is still 202.4 MB. Free memory was 159.8 MB in the beginning and 157.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.20 ms. Allocated memory is still 202.4 MB. Free memory was 157.8 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 483.30 ms. Allocated memory is still 202.4 MB. Free memory was 155.8 MB in the beginning and 132.1 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4551.74 ms. Allocated memory was 202.4 MB in the beginning and 288.9 MB in the end (delta: 86.5 MB). Free memory was 131.5 MB in the beginning and 194.6 MB in the end (delta: -63.1 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 93 ProgramPointsBefore, 39 ProgramPointsAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 945 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2807 CheckedPairsTotal, 63 TotalNumberOfCompositions - 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 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.4s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 267 SDtfs, 301 SDslu, 479 SDs, 0 SdLazy, 217 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 6930 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...