/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 23:54:39,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 23:54:39,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 23:54:39,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 23:54:39,653 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 23:54:39,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 23:54:39,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 23:54:39,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 23:54:39,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 23:54:39,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 23:54:39,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 23:54:39,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 23:54:39,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 23:54:39,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 23:54:39,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 23:54:39,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 23:54:39,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 23:54:39,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 23:54:39,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 23:54:39,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 23:54:39,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 23:54:39,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 23:54:39,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 23:54:39,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 23:54:39,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-17 23:54:39,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-17 23:54:39,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-17 23:54:39,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-17 23:54:39,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-17 23:54:39,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-17 23:54:39,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 23:54:39,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 23:54:39,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 23:54:39,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 23:54:39,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 23:54:39,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 23:54:39,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 23:54:39,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 23:54:39,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 23:54:39,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 23:54:39,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 23:54:39,749 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-NoLbe-keepdead.epf [2020-12-17 23:54:39,806 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 23:54:39,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 23:54:39,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 23:54:39,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 23:54:39,812 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 23:54:39,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 23:54:39,812 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 23:54:39,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 23:54:39,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 23:54:39,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 23:54:39,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 23:54:39,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 23:54:39,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 23:54:39,815 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 23:54:39,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 23:54:39,815 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 23:54:39,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 23:54:39,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 23:54:39,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 23:54:39,816 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 23:54:39,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 23:54:39,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:54:39,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 23:54:39,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 23:54:39,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 23:54:39,818 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 23:54:39,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 23:54:39,818 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 23:54:39,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 23:54:39,819 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-17 23:54:39,819 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 23:54:39,819 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 23:54:40,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 23:54:40,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 23:54:40,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 23:54:40,256 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 23:54:40,257 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 23:54:40,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i [2020-12-17 23:54:40,358 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68a4c114b/bf52bd44da9b45f29ad5758d2042bd47/FLAGf4c5feff1 [2020-12-17 23:54:41,133 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 23:54:41,136 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i [2020-12-17 23:54:41,151 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68a4c114b/bf52bd44da9b45f29ad5758d2042bd47/FLAGf4c5feff1 [2020-12-17 23:54:41,423 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68a4c114b/bf52bd44da9b45f29ad5758d2042bd47 [2020-12-17 23:54:41,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 23:54:41,436 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 23:54:41,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 23:54:41,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 23:54:41,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 23:54:41,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:54:41" (1/1) ... [2020-12-17 23:54:41,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@631f1dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:54:41, skipping insertion in model container [2020-12-17 23:54:41,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:54:41" (1/1) ... [2020-12-17 23:54:41,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 23:54:41,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 23:54:41,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:54:42,010 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 23:54:42,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:54:42,186 INFO L208 MainTranslator]: Completed translation [2020-12-17 23:54:42,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:54:42 WrapperNode [2020-12-17 23:54:42,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 23:54:42,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 23:54:42,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 23:54:42,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 23:54:42,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:54:42" (1/1) ... [2020-12-17 23:54:42,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:54:42" (1/1) ... [2020-12-17 23:54:42,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 23:54:42,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 23:54:42,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 23:54:42,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 23:54:42,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:54:42" (1/1) ... [2020-12-17 23:54:42,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:54:42" (1/1) ... [2020-12-17 23:54:42,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:54:42" (1/1) ... [2020-12-17 23:54:42,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:54:42" (1/1) ... [2020-12-17 23:54:42,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:54:42" (1/1) ... [2020-12-17 23:54:42,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:54:42" (1/1) ... [2020-12-17 23:54:42,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:54:42" (1/1) ... [2020-12-17 23:54:42,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 23:54:42,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 23:54:42,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 23:54:42,271 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 23:54:42,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:54:42" (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 [2020-12-17 23:54:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 23:54:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 23:54:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 23:54:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 23:54:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 23:54:42,403 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 23:54:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 23:54:42,403 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 23:54:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-17 23:54:42,403 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-17 23:54:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 23:54:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 23:54:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 23:54:42,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 23:54:42,406 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 23:54:42,945 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 23:54:42,945 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 23:54:42,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:54:42 BoogieIcfgContainer [2020-12-17 23:54:42,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 23:54:42,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 23:54:42,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 23:54:42,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 23:54:42,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:54:41" (1/3) ... [2020-12-17 23:54:42,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27aaae3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:54:42, skipping insertion in model container [2020-12-17 23:54:42,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:54:42" (2/3) ... [2020-12-17 23:54:42,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27aaae3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:54:42, skipping insertion in model container [2020-12-17 23:54:42,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:54:42" (3/3) ... [2020-12-17 23:54:42,956 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc.i [2020-12-17 23:54:42,972 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 23:54:42,972 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 23:54:42,976 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 23:54:42,977 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 23:54:43,006 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,006 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,007 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,007 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,007 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,007 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,007 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,007 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,009 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,009 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,009 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,009 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,010 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,010 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,010 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,010 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,012 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,012 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,012 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,012 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,012 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,013 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,013 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,013 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,013 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,013 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,014 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,014 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,016 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,017 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,017 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,017 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,024 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,024 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,024 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,025 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,027 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,027 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:54:43,030 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 23:54:43,044 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-17 23:54:43,067 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 23:54:43,068 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 23:54:43,068 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 23:54:43,068 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 23:54:43,068 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 23:54:43,068 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 23:54:43,069 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 23:54:43,069 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 23:54:43,081 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 84 places, 77 transitions, 169 flow [2020-12-17 23:54:43,694 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8447 states, 8445 states have (on average 3.5896980461811725) internal successors, (30315), 8446 states have internal predecessors, (30315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:54:43,732 INFO L276 IsEmpty]: Start isEmpty. Operand has 8447 states, 8445 states have (on average 3.5896980461811725) internal successors, (30315), 8446 states have internal predecessors, (30315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:54:43,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-17 23:54:43,771 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:54:43,772 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:54:43,773 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:54:43,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:54:43,780 INFO L82 PathProgramCache]: Analyzing trace with hash -736353114, now seen corresponding path program 1 times [2020-12-17 23:54:43,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:54:43,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994004835] [2020-12-17 23:54:43,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:54:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:54:44,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:54:44,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994004835] [2020-12-17 23:54:44,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:54:44,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:54:44,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750154029] [2020-12-17 23:54:44,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:54:44,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:54:44,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:54:44,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:54:44,301 INFO L87 Difference]: Start difference. First operand has 8447 states, 8445 states have (on average 3.5896980461811725) internal successors, (30315), 8446 states have internal predecessors, (30315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:54:44,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:54:44,746 INFO L93 Difference]: Finished difference Result 10463 states and 36159 transitions. [2020-12-17 23:54:44,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:54:44,749 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2020-12-17 23:54:44,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:54:44,752 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:54:44,753 INFO L78 Accepts]: Start accepts. Automaton has 10463 states and 36159 transitions. Word has length 41 [2020-12-17 23:54:44,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:54:44,755 INFO L481 AbstractCegarLoop]: Abstraction has 10463 states and 36159 transitions. [2020-12-17 23:54:44,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:54:44,756 INFO L276 IsEmpty]: Start isEmpty. Operand 10463 states and 36159 transitions. [2020-12-17 23:54:44,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-17 23:54:44,783 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:54:44,784 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:54:44,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 23:54:44,784 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:54:44,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:54:44,789 INFO L82 PathProgramCache]: Analyzing trace with hash 2028391175, now seen corresponding path program 1 times [2020-12-17 23:54:44,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:54:44,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917316263] [2020-12-17 23:54:44,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:54:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:54:44,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:54:44,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917316263] [2020-12-17 23:54:44,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:54:44,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:54:44,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192022687] [2020-12-17 23:54:44,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:54:44,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:54:44,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:54:44,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:54:44,959 INFO L87 Difference]: Start difference. First operand 10463 states and 36159 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:54:45,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:54:45,381 INFO L93 Difference]: Finished difference Result 16127 states and 55447 transitions. [2020-12-17 23:54:45,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:54:45,382 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2020-12-17 23:54:45,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:54:45,383 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:54:45,383 INFO L78 Accepts]: Start accepts. Automaton has 16127 states and 55447 transitions. Word has length 43 [2020-12-17 23:54:45,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:54:45,384 INFO L481 AbstractCegarLoop]: Abstraction has 16127 states and 55447 transitions. [2020-12-17 23:54:45,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:54:45,384 INFO L276 IsEmpty]: Start isEmpty. Operand 16127 states and 55447 transitions. [2020-12-17 23:54:45,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-17 23:54:45,402 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:54:45,403 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:54:45,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 23:54:45,403 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:54:45,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:54:45,404 INFO L82 PathProgramCache]: Analyzing trace with hash 565402146, now seen corresponding path program 1 times [2020-12-17 23:54:45,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:54:45,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515398996] [2020-12-17 23:54:45,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:54:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:54:45,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:54:45,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515398996] [2020-12-17 23:54:45,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:54:45,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:54:45,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781430329] [2020-12-17 23:54:45,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:54:45,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:54:45,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:54:45,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:54:45,611 INFO L87 Difference]: Start difference. First operand 16127 states and 55447 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:54:46,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:54:46,284 INFO L93 Difference]: Finished difference Result 24151 states and 82095 transitions. [2020-12-17 23:54:46,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:54:46,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2020-12-17 23:54:46,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:54:46,286 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:54:46,286 INFO L78 Accepts]: Start accepts. Automaton has 24151 states and 82095 transitions. Word has length 44 [2020-12-17 23:54:46,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:54:46,286 INFO L481 AbstractCegarLoop]: Abstraction has 24151 states and 82095 transitions. [2020-12-17 23:54:46,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:54:46,287 INFO L276 IsEmpty]: Start isEmpty. Operand 24151 states and 82095 transitions. [2020-12-17 23:54:46,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-17 23:54:46,338 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:54:46,339 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:54:46,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 23:54:46,339 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:54:46,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:54:46,411 INFO L82 PathProgramCache]: Analyzing trace with hash -676376959, now seen corresponding path program 1 times [2020-12-17 23:54:46,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:54:46,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648508909] [2020-12-17 23:54:46,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:54:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:54:46,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:54:46,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648508909] [2020-12-17 23:54:46,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:54:46,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:54:46,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396319061] [2020-12-17 23:54:46,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:54:46,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:54:46,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:54:46,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:54:46,599 INFO L87 Difference]: Start difference. First operand 24151 states and 82095 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:54:47,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:54:47,127 INFO L93 Difference]: Finished difference Result 39943 states and 133963 transitions. [2020-12-17 23:54:47,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:54:47,128 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2020-12-17 23:54:47,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:54:47,129 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:54:47,129 INFO L78 Accepts]: Start accepts. Automaton has 39943 states and 133963 transitions. Word has length 46 [2020-12-17 23:54:47,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:54:47,130 INFO L481 AbstractCegarLoop]: Abstraction has 39943 states and 133963 transitions. [2020-12-17 23:54:47,130 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:54:47,130 INFO L276 IsEmpty]: Start isEmpty. Operand 39943 states and 133963 transitions. [2020-12-17 23:54:47,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-17 23:54:47,243 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:54:47,243 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:54:47,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 23:54:47,244 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:54:47,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:54:47,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1519714679, now seen corresponding path program 1 times [2020-12-17 23:54:47,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:54:47,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105257428] [2020-12-17 23:54:47,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:54:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:54:47,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:54:47,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105257428] [2020-12-17 23:54:47,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:54:47,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:54:47,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156312378] [2020-12-17 23:54:47,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:54:47,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:54:47,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:54:47,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:54:47,394 INFO L87 Difference]: Start difference. First operand 39943 states and 133963 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:54:47,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:54:47,765 INFO L93 Difference]: Finished difference Result 31299 states and 102436 transitions. [2020-12-17 23:54:47,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-17 23:54:47,766 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2020-12-17 23:54:47,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:54:47,767 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:54:47,767 INFO L78 Accepts]: Start accepts. Automaton has 31299 states and 102436 transitions. Word has length 47 [2020-12-17 23:54:47,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:54:47,768 INFO L481 AbstractCegarLoop]: Abstraction has 31299 states and 102436 transitions. [2020-12-17 23:54:47,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:54:47,768 INFO L276 IsEmpty]: Start isEmpty. Operand 31299 states and 102436 transitions. [2020-12-17 23:54:47,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-17 23:54:47,821 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:54:47,822 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:54:47,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-17 23:54:47,822 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:54:47,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:54:47,828 INFO L82 PathProgramCache]: Analyzing trace with hash 2042804477, now seen corresponding path program 1 times [2020-12-17 23:54:47,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:54:47,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023112105] [2020-12-17 23:54:47,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:54:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:54:48,180 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 5 [2020-12-17 23:54:48,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:54:48,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023112105] [2020-12-17 23:54:48,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:54:48,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:54:48,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373799382] [2020-12-17 23:54:48,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:54:48,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:54:48,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:54:48,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:54:48,193 INFO L87 Difference]: Start difference. First operand 31299 states and 102436 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:54:48,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:54:48,611 INFO L93 Difference]: Finished difference Result 18033 states and 57430 transitions. [2020-12-17 23:54:48,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:54:48,612 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2020-12-17 23:54:48,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:54:48,613 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-12-17 23:54:48,613 INFO L78 Accepts]: Start accepts. Automaton has 18033 states and 57430 transitions. Word has length 48 [2020-12-17 23:54:48,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:54:48,614 INFO L481 AbstractCegarLoop]: Abstraction has 18033 states and 57430 transitions. [2020-12-17 23:54:48,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:54:48,615 INFO L276 IsEmpty]: Start isEmpty. Operand 18033 states and 57430 transitions. [2020-12-17 23:54:48,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-17 23:54:48,644 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:54:48,644 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:54:48,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-17 23:54:48,644 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:54:48,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:54:48,645 INFO L82 PathProgramCache]: Analyzing trace with hash -207995556, now seen corresponding path program 1 times [2020-12-17 23:54:48,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:54:48,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455153356] [2020-12-17 23:54:48,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:54:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:54:48,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:54:48,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455153356] [2020-12-17 23:54:48,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:54:48,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-17 23:54:48,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018522137] [2020-12-17 23:54:48,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-17 23:54:48,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:54:48,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-17 23:54:48,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-17 23:54:48,799 INFO L87 Difference]: Start difference. First operand 18033 states and 57430 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:54:49,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:54:49,353 INFO L93 Difference]: Finished difference Result 11571 states and 36475 transitions. [2020-12-17 23:54:49,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-17 23:54:49,353 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2020-12-17 23:54:49,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:54:49,355 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-12-17 23:54:49,355 INFO L78 Accepts]: Start accepts. Automaton has 11571 states and 36475 transitions. Word has length 50 [2020-12-17 23:54:49,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:54:49,357 INFO L481 AbstractCegarLoop]: Abstraction has 11571 states and 36475 transitions. [2020-12-17 23:54:49,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:54:49,358 INFO L276 IsEmpty]: Start isEmpty. Operand 11571 states and 36475 transitions. [2020-12-17 23:54:49,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-17 23:54:49,384 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:54:49,384 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 23:54:49,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-17 23:54:49,385 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:54:49,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:54:49,385 INFO L82 PathProgramCache]: Analyzing trace with hash 848095813, now seen corresponding path program 1 times [2020-12-17 23:54:49,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:54:49,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056604553] [2020-12-17 23:54:49,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:54:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:54:49,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:54:49,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056604553] [2020-12-17 23:54:49,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:54:49,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:54:49,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118902543] [2020-12-17 23:54:49,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:54:49,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:54:49,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:54:49,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:54:49,549 INFO L87 Difference]: Start difference. First operand 11571 states and 36475 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:54:49,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:54:49,867 INFO L93 Difference]: Finished difference Result 17174 states and 53588 transitions. [2020-12-17 23:54:49,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-17 23:54:49,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2020-12-17 23:54:49,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:54:49,869 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:54:49,869 INFO L78 Accepts]: Start accepts. Automaton has 17174 states and 53588 transitions. Word has length 52 [2020-12-17 23:54:49,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:54:49,870 INFO L481 AbstractCegarLoop]: Abstraction has 17174 states and 53588 transitions. [2020-12-17 23:54:49,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:54:49,870 INFO L276 IsEmpty]: Start isEmpty. Operand 17174 states and 53588 transitions. [2020-12-17 23:54:49,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 23:54:49,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-17 23:54:49,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 11:54:49 BasicIcfg [2020-12-17 23:54:49,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 23:54:49,916 INFO L168 Benchmark]: Toolchain (without parser) took 8474.19 ms. Allocated memory was 306.2 MB in the beginning and 3.3 GB in the end (delta: 3.0 GB). Free memory was 281.2 MB in the beginning and 3.0 GB in the end (delta: -2.7 GB). Peak memory consumption was 387.5 MB. Max. memory is 16.0 GB. [2020-12-17 23:54:49,917 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 306.2 MB. Free memory is still 276.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:54:49,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.26 ms. Allocated memory is still 306.2 MB. Free memory was 281.0 MB in the beginning and 250.5 MB in the end (delta: 30.5 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. [2020-12-17 23:54:49,919 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.62 ms. Allocated memory is still 306.2 MB. Free memory was 250.3 MB in the beginning and 248.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:54:49,920 INFO L168 Benchmark]: Boogie Preprocessor took 30.55 ms. Allocated memory is still 306.2 MB. Free memory was 248.5 MB in the beginning and 247.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:54:49,921 INFO L168 Benchmark]: RCFGBuilder took 677.18 ms. Allocated memory is still 306.2 MB. Free memory was 247.1 MB in the beginning and 265.6 MB in the end (delta: -18.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. [2020-12-17 23:54:49,924 INFO L168 Benchmark]: TraceAbstraction took 6959.17 ms. Allocated memory was 306.2 MB in the beginning and 3.3 GB in the end (delta: 3.0 GB). Free memory was 264.5 MB in the beginning and 3.0 GB in the end (delta: -2.7 GB). Peak memory consumption was 368.4 MB. Max. memory is 16.0 GB. [2020-12-17 23:54:49,934 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 306.2 MB. Free memory is still 276.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 746.26 ms. Allocated memory is still 306.2 MB. Free memory was 281.0 MB in the beginning and 250.5 MB in the end (delta: 30.5 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 50.62 ms. Allocated memory is still 306.2 MB. Free memory was 250.3 MB in the beginning and 248.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.55 ms. Allocated memory is still 306.2 MB. Free memory was 248.5 MB in the beginning and 247.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 677.18 ms. Allocated memory is still 306.2 MB. Free memory was 247.1 MB in the beginning and 265.6 MB in the end (delta: -18.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6959.17 ms. Allocated memory was 306.2 MB in the beginning and 3.3 GB in the end (delta: 3.0 GB). Free memory was 264.5 MB in the beginning and 3.0 GB in the end (delta: -2.7 GB). Peak memory consumption was 368.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.6s, HoareTripleCheckerStatistics: 901 SDtfs, 1660 SDslu, 3026 SDs, 0 SdLazy, 355 SolverSat, 82 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39943occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 371 NumberOfCodeBlocks, 371 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 363 ConstructedInterpolants, 0 QuantifiedInterpolants, 43187 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...