/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/safe015_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:14:11,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:14:11,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:14:11,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:14:11,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:14:11,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:14:11,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:14:11,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:14:11,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:14:11,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:14:11,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:14:11,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:14:11,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:14:11,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:14:11,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:14:11,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:14:11,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:14:11,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:14:11,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:14:11,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:14:11,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:14:11,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:14:11,579 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:14:11,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:14:11,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 21:14:11,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 21:14:11,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 21:14:11,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 21:14:11,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 21:14:11,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 21:14:11,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:14:11,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:14:11,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:14:11,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:14:11,604 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:14:11,604 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:14:11,605 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:14:11,605 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:14:11,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:14:11,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:14:11,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:14:11,609 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 [2021-01-20 21:14:11,673 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:14:11,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:14:11,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:14:11,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:14:11,679 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:14:11,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:14:11,680 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:14:11,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:14:11,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:14:11,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:14:11,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:14:11,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:14:11,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:14:11,683 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:14:11,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:14:11,683 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:14:11,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:14:11,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:14:11,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:14:11,684 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:14:11,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:14:11,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:14:11,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:14:11,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:14:11,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:14:11,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:14:11,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:14:11,686 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:14:11,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:14:11,687 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:14:11,687 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:14:11,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:14:12,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:14:12,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:14:12,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:14:12,178 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:14:12,178 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:14:12,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2021-01-20 21:14:12,262 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fec4eee4/70918c3673544019ac607f3f750407c6/FLAG1a1278677 [2021-01-20 21:14:13,089 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:14:13,095 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2021-01-20 21:14:13,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fec4eee4/70918c3673544019ac607f3f750407c6/FLAG1a1278677 [2021-01-20 21:14:13,288 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fec4eee4/70918c3673544019ac607f3f750407c6 [2021-01-20 21:14:13,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:14:13,298 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:14:13,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:14:13,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:14:13,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:14:13,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:14:13" (1/1) ... [2021-01-20 21:14:13,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9ae85f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:13, skipping insertion in model container [2021-01-20 21:14:13,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:14:13" (1/1) ... [2021-01-20 21:14:13,322 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:14:13,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:14:13,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:14:13,851 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:14:13,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:14:13,996 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:14:13,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:13 WrapperNode [2021-01-20 21:14:13,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:14:13,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:14:13,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:14:13,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:14:14,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:13" (1/1) ... [2021-01-20 21:14:14,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:13" (1/1) ... [2021-01-20 21:14:14,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:14:14,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:14:14,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:14:14,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:14:14,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:13" (1/1) ... [2021-01-20 21:14:14,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:13" (1/1) ... [2021-01-20 21:14:14,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:13" (1/1) ... [2021-01-20 21:14:14,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:13" (1/1) ... [2021-01-20 21:14:14,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:13" (1/1) ... [2021-01-20 21:14:14,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:13" (1/1) ... [2021-01-20 21:14:14,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:13" (1/1) ... [2021-01-20 21:14:14,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:14:14,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:14:14,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:14:14,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:14:14,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:13" (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 [2021-01-20 21:14:14,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:14:14,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:14:14,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:14:14,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:14:14,177 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:14:14,178 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:14:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:14:14,179 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:14:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 21:14:14,180 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 21:14:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:14:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:14:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:14:14,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:14:14,182 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 21:14:14,774 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:14:14,775 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 21:14:14,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:14:14 BoogieIcfgContainer [2021-01-20 21:14:14,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:14:14,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:14:14,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:14:14,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:14:14,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:14:13" (1/3) ... [2021-01-20 21:14:14,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b7b382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:14:14, skipping insertion in model container [2021-01-20 21:14:14,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:13" (2/3) ... [2021-01-20 21:14:14,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b7b382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:14:14, skipping insertion in model container [2021-01-20 21:14:14,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:14:14" (3/3) ... [2021-01-20 21:14:14,793 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_tso.opt.i [2021-01-20 21:14:14,813 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:14:14,813 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:14:14,817 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 21:14:14,818 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:14:14,868 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,869 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,869 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,869 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,869 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,870 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,870 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,870 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,870 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,871 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,871 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,871 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,872 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,873 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,873 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,873 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,873 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,873 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,873 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,874 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,874 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,874 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,874 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,876 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,877 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,878 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,878 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,878 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,879 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,880 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,880 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,880 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,881 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,881 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,881 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,890 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,890 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,890 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,891 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,897 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,897 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,897 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,897 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,900 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,901 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,901 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,901 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:14,904 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:14:14,920 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 21:14:14,964 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:14:14,964 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:14:14,964 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:14:14,964 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:14:14,965 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:14:14,965 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:14:14,965 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:14:14,965 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:14:14,983 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 78 transitions, 171 flow [2021-01-20 21:14:16,075 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9847 states, 9845 states have (on average 3.614931437277806) internal successors, (35589), 9846 states have internal predecessors, (35589), 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) [2021-01-20 21:14:16,117 INFO L276 IsEmpty]: Start isEmpty. Operand has 9847 states, 9845 states have (on average 3.614931437277806) internal successors, (35589), 9846 states have internal predecessors, (35589), 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) [2021-01-20 21:14:16,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-01-20 21:14:16,174 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:14:16,175 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] [2021-01-20 21:14:16,175 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:14:16,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:14:16,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1728151724, now seen corresponding path program 1 times [2021-01-20 21:14:16,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:14:16,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328160312] [2021-01-20 21:14:16,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:14:16,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:14:16,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:14:16,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328160312] [2021-01-20 21:14:16,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:14:16,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:14:16,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219462716] [2021-01-20 21:14:16,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:14:16,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:14:16,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:14:16,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:14:16,739 INFO L87 Difference]: Start difference. First operand has 9847 states, 9845 states have (on average 3.614931437277806) internal successors, (35589), 9846 states have internal predecessors, (35589), 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) [2021-01-20 21:14:17,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:14:17,325 INFO L93 Difference]: Finished difference Result 12199 states and 42463 transitions. [2021-01-20 21:14:17,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:14:17,328 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 [2021-01-20 21:14:17,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:14:17,331 INFO L769 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 [2021-01-20 21:14:17,331 INFO L78 Accepts]: Start accepts. Automaton has 12199 states and 42463 transitions. Word has length 41 [2021-01-20 21:14:17,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:14:17,333 INFO L481 AbstractCegarLoop]: Abstraction has 12199 states and 42463 transitions. [2021-01-20 21:14:17,333 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) [2021-01-20 21:14:17,333 INFO L276 IsEmpty]: Start isEmpty. Operand 12199 states and 42463 transitions. [2021-01-20 21:14:17,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-01-20 21:14:17,365 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:14:17,365 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] [2021-01-20 21:14:17,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:14:17,366 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:14:17,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:14:17,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1918466709, now seen corresponding path program 1 times [2021-01-20 21:14:17,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:14:17,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584286173] [2021-01-20 21:14:17,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:14:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:14:17,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:14:17,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584286173] [2021-01-20 21:14:17,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:14:17,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:14:17,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865710316] [2021-01-20 21:14:17,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:14:17,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:14:17,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:14:17,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:14:17,619 INFO L87 Difference]: Start difference. First operand 12199 states and 42463 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) [2021-01-20 21:14:18,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:14:18,148 INFO L93 Difference]: Finished difference Result 14747 states and 51045 transitions. [2021-01-20 21:14:18,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:14:18,149 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 [2021-01-20 21:14:18,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:14:18,152 INFO L769 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 [2021-01-20 21:14:18,152 INFO L78 Accepts]: Start accepts. Automaton has 14747 states and 51045 transitions. Word has length 43 [2021-01-20 21:14:18,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:14:18,153 INFO L481 AbstractCegarLoop]: Abstraction has 14747 states and 51045 transitions. [2021-01-20 21:14:18,153 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) [2021-01-20 21:14:18,154 INFO L276 IsEmpty]: Start isEmpty. Operand 14747 states and 51045 transitions. [2021-01-20 21:14:18,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-20 21:14:18,247 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:14:18,247 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] [2021-01-20 21:14:18,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:14:18,248 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:14:18,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:14:18,250 INFO L82 PathProgramCache]: Analyzing trace with hash -795070177, now seen corresponding path program 1 times [2021-01-20 21:14:18,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:14:18,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936218244] [2021-01-20 21:14:18,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:14:18,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:14:18,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:14:18,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936218244] [2021-01-20 21:14:18,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:14:18,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:14:18,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551569580] [2021-01-20 21:14:18,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:14:18,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:14:18,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:14:18,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:14:18,430 INFO L87 Difference]: Start difference. First operand 14747 states and 51045 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 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) [2021-01-20 21:14:18,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:14:18,824 INFO L93 Difference]: Finished difference Result 22363 states and 76879 transitions. [2021-01-20 21:14:18,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:14:18,825 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 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 [2021-01-20 21:14:18,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:14:18,825 INFO L769 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 [2021-01-20 21:14:18,826 INFO L78 Accepts]: Start accepts. Automaton has 22363 states and 76879 transitions. Word has length 44 [2021-01-20 21:14:18,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:14:18,826 INFO L481 AbstractCegarLoop]: Abstraction has 22363 states and 76879 transitions. [2021-01-20 21:14:18,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 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) [2021-01-20 21:14:18,827 INFO L276 IsEmpty]: Start isEmpty. Operand 22363 states and 76879 transitions. [2021-01-20 21:14:18,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-01-20 21:14:18,864 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:14:18,864 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] [2021-01-20 21:14:18,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:14:18,864 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:14:18,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:14:18,865 INFO L82 PathProgramCache]: Analyzing trace with hash 2081473022, now seen corresponding path program 1 times [2021-01-20 21:14:18,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:14:18,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939181083] [2021-01-20 21:14:18,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:14:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:14:19,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:14:19,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939181083] [2021-01-20 21:14:19,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:14:19,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:14:19,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261051340] [2021-01-20 21:14:19,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:14:19,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:14:19,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:14:19,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:14:19,109 INFO L87 Difference]: Start difference. First operand 22363 states and 76879 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) [2021-01-20 21:14:19,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:14:19,606 INFO L93 Difference]: Finished difference Result 37563 states and 128367 transitions. [2021-01-20 21:14:19,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:14:19,614 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 [2021-01-20 21:14:19,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:14:19,619 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:14:19,620 INFO L78 Accepts]: Start accepts. Automaton has 37563 states and 128367 transitions. Word has length 46 [2021-01-20 21:14:19,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:14:19,626 INFO L481 AbstractCegarLoop]: Abstraction has 37563 states and 128367 transitions. [2021-01-20 21:14:19,627 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) [2021-01-20 21:14:19,627 INFO L276 IsEmpty]: Start isEmpty. Operand 37563 states and 128367 transitions. [2021-01-20 21:14:19,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 21:14:19,730 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:14:19,730 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] [2021-01-20 21:14:19,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:14:19,731 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:14:19,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:14:19,731 INFO L82 PathProgramCache]: Analyzing trace with hash -306051688, now seen corresponding path program 1 times [2021-01-20 21:14:19,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:14:19,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430129471] [2021-01-20 21:14:19,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:14:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:14:19,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:14:19,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430129471] [2021-01-20 21:14:19,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:14:19,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:14:19,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56527963] [2021-01-20 21:14:19,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:14:19,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:14:19,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:14:19,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:14:19,860 INFO L87 Difference]: Start difference. First operand 37563 states and 128367 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) [2021-01-20 21:14:20,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:14:20,708 INFO L93 Difference]: Finished difference Result 61275 states and 206511 transitions. [2021-01-20 21:14:20,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:14:20,710 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 [2021-01-20 21:14:20,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:14:20,712 INFO L769 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 [2021-01-20 21:14:20,712 INFO L78 Accepts]: Start accepts. Automaton has 61275 states and 206511 transitions. Word has length 47 [2021-01-20 21:14:20,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:14:20,715 INFO L481 AbstractCegarLoop]: Abstraction has 61275 states and 206511 transitions. [2021-01-20 21:14:20,716 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) [2021-01-20 21:14:20,716 INFO L276 IsEmpty]: Start isEmpty. Operand 61275 states and 206511 transitions. [2021-01-20 21:14:20,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-20 21:14:20,766 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:14:20,767 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] [2021-01-20 21:14:20,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:14:20,767 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:14:20,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:14:20,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1816760195, now seen corresponding path program 1 times [2021-01-20 21:14:20,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:14:20,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608926571] [2021-01-20 21:14:20,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:14:20,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:14:20,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:14:20,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608926571] [2021-01-20 21:14:20,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:14:20,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:14:20,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064210440] [2021-01-20 21:14:20,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:14:20,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:14:20,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:14:20,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:14:20,959 INFO L87 Difference]: Start difference. First operand 61275 states and 206511 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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) [2021-01-20 21:14:21,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:14:21,403 INFO L93 Difference]: Finished difference Result 34272 states and 112311 transitions. [2021-01-20 21:14:21,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 21:14:21,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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 [2021-01-20 21:14:21,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:14:21,405 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:14:21,405 INFO L78 Accepts]: Start accepts. Automaton has 34272 states and 112311 transitions. Word has length 48 [2021-01-20 21:14:21,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:14:21,405 INFO L481 AbstractCegarLoop]: Abstraction has 34272 states and 112311 transitions. [2021-01-20 21:14:21,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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) [2021-01-20 21:14:21,406 INFO L276 IsEmpty]: Start isEmpty. Operand 34272 states and 112311 transitions. [2021-01-20 21:14:21,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-20 21:14:21,446 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:14:21,447 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] [2021-01-20 21:14:21,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 21:14:21,447 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:14:21,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:14:21,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1635595998, now seen corresponding path program 1 times [2021-01-20 21:14:21,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:14:21,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621252548] [2021-01-20 21:14:21,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:14:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:14:21,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:14:21,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621252548] [2021-01-20 21:14:21,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:14:21,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:14:21,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246033567] [2021-01-20 21:14:21,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:14:21,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:14:21,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:14:21,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:14:21,582 INFO L87 Difference]: Start difference. First operand 34272 states and 112311 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2021-01-20 21:14:22,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:14:22,080 INFO L93 Difference]: Finished difference Result 14643 states and 46746 transitions. [2021-01-20 21:14:22,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:14:22,081 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 49 [2021-01-20 21:14:22,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:14:22,082 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:14:22,082 INFO L78 Accepts]: Start accepts. Automaton has 14643 states and 46746 transitions. Word has length 49 [2021-01-20 21:14:22,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:14:22,083 INFO L481 AbstractCegarLoop]: Abstraction has 14643 states and 46746 transitions. [2021-01-20 21:14:22,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2021-01-20 21:14:22,083 INFO L276 IsEmpty]: Start isEmpty. Operand 14643 states and 46746 transitions. [2021-01-20 21:14:22,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 21:14:22,103 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:14:22,103 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] [2021-01-20 21:14:22,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 21:14:22,103 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:14:22,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:14:22,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1738964541, now seen corresponding path program 1 times [2021-01-20 21:14:22,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:14:22,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167351520] [2021-01-20 21:14:22,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:14:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:14:22,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:14:22,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167351520] [2021-01-20 21:14:22,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:14:22,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 21:14:22,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448499720] [2021-01-20 21:14:22,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 21:14:22,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:14:22,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 21:14:22,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 21:14:22,275 INFO L87 Difference]: Start difference. First operand 14643 states and 46746 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 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) [2021-01-20 21:14:22,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:14:22,691 INFO L93 Difference]: Finished difference Result 7992 states and 25638 transitions. [2021-01-20 21:14:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-20 21:14:22,692 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 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 51 [2021-01-20 21:14:22,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:14:22,693 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-01-20 21:14:22,693 INFO L78 Accepts]: Start accepts. Automaton has 7992 states and 25638 transitions. Word has length 51 [2021-01-20 21:14:22,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:14:22,694 INFO L481 AbstractCegarLoop]: Abstraction has 7992 states and 25638 transitions. [2021-01-20 21:14:22,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 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) [2021-01-20 21:14:22,695 INFO L276 IsEmpty]: Start isEmpty. Operand 7992 states and 25638 transitions. [2021-01-20 21:14:22,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 21:14:22,712 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:14:22,712 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, 1] [2021-01-20 21:14:22,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 21:14:22,713 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:14:22,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:14:22,713 INFO L82 PathProgramCache]: Analyzing trace with hash -889143118, now seen corresponding path program 1 times [2021-01-20 21:14:22,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:14:22,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682113305] [2021-01-20 21:14:22,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:14:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:14:22,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:14:22,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682113305] [2021-01-20 21:14:22,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:14:22,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:14:22,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8918854] [2021-01-20 21:14:22,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:14:22,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:14:22,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:14:22,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:14:22,875 INFO L87 Difference]: Start difference. First operand 7992 states and 25638 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-01-20 21:14:23,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:14:23,201 INFO L93 Difference]: Finished difference Result 11898 states and 37570 transitions. [2021-01-20 21:14:23,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:14:23,202 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-01-20 21:14:23,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:14:23,202 INFO L769 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 [2021-01-20 21:14:23,202 INFO L78 Accepts]: Start accepts. Automaton has 11898 states and 37570 transitions. Word has length 53 [2021-01-20 21:14:23,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:14:23,203 INFO L481 AbstractCegarLoop]: Abstraction has 11898 states and 37570 transitions. [2021-01-20 21:14:23,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-01-20 21:14:23,203 INFO L276 IsEmpty]: Start isEmpty. Operand 11898 states and 37570 transitions. [2021-01-20 21:14:23,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 21:14:23,219 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:14:23,219 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, 1] [2021-01-20 21:14:23,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-20 21:14:23,219 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:14:23,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:14:23,220 INFO L82 PathProgramCache]: Analyzing trace with hash 388446026, now seen corresponding path program 2 times [2021-01-20 21:14:23,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:14:23,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473955712] [2021-01-20 21:14:23,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:14:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:14:23,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:14:23,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473955712] [2021-01-20 21:14:23,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:14:23,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:14:23,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263841171] [2021-01-20 21:14:23,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:14:23,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:14:23,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:14:23,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:14:23,363 INFO L87 Difference]: Start difference. First operand 11898 states and 37570 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-01-20 21:14:23,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:14:23,552 INFO L93 Difference]: Finished difference Result 16413 states and 51529 transitions. [2021-01-20 21:14:23,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-20 21:14:23,552 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-01-20 21:14:23,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:14:23,553 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:14:23,554 INFO L78 Accepts]: Start accepts. Automaton has 16413 states and 51529 transitions. Word has length 53 [2021-01-20 21:14:23,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:14:23,555 INFO L481 AbstractCegarLoop]: Abstraction has 16413 states and 51529 transitions. [2021-01-20 21:14:23,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-01-20 21:14:23,555 INFO L276 IsEmpty]: Start isEmpty. Operand 16413 states and 51529 transitions. [2021-01-20 21:14:23,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 21:14:23,582 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:14:23,582 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, 1] [2021-01-20 21:14:23,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-20 21:14:23,583 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:14:23,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:14:23,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1880557810, now seen corresponding path program 3 times [2021-01-20 21:14:23,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:14:23,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216517021] [2021-01-20 21:14:23,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:14:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:14:23,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:14:23,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216517021] [2021-01-20 21:14:23,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:14:23,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:14:23,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874033331] [2021-01-20 21:14:23,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:14:23,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:14:23,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:14:23,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:14:23,726 INFO L87 Difference]: Start difference. First operand 16413 states and 51529 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-01-20 21:14:24,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:14:24,071 INFO L93 Difference]: Finished difference Result 26898 states and 83998 transitions. [2021-01-20 21:14:24,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:14:24,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-01-20 21:14:24,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:14:24,072 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:14:24,072 INFO L78 Accepts]: Start accepts. Automaton has 26898 states and 83998 transitions. Word has length 53 [2021-01-20 21:14:24,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:14:24,073 INFO L481 AbstractCegarLoop]: Abstraction has 26898 states and 83998 transitions. [2021-01-20 21:14:24,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-01-20 21:14:24,073 INFO L276 IsEmpty]: Start isEmpty. Operand 26898 states and 83998 transitions. [2021-01-20 21:14:24,120 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:14:24,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-20 21:14:24,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:14:24 BasicIcfg [2021-01-20 21:14:24,126 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:14:24,128 INFO L168 Benchmark]: Toolchain (without parser) took 10831.34 ms. Allocated memory was 306.2 MB in the beginning and 3.6 GB in the end (delta: 3.3 GB). Free memory was 280.6 MB in the beginning and 3.1 GB in the end (delta: -2.8 GB). Peak memory consumption was 472.0 MB. Max. memory is 16.0 GB. [2021-01-20 21:14:24,129 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 306.2 MB. Free memory was 277.4 MB in the beginning and 277.3 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:14:24,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.68 ms. Allocated memory is still 306.2 MB. Free memory was 280.4 MB in the beginning and 270.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-01-20 21:14:24,131 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.47 ms. Allocated memory is still 306.2 MB. Free memory was 270.1 MB in the beginning and 268.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:14:24,132 INFO L168 Benchmark]: Boogie Preprocessor took 29.98 ms. Allocated memory is still 306.2 MB. Free memory was 268.0 MB in the beginning and 266.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:14:24,132 INFO L168 Benchmark]: RCFGBuilder took 695.71 ms. Allocated memory is still 306.2 MB. Free memory was 266.7 MB in the beginning and 284.0 MB in the end (delta: -17.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 16.0 GB. [2021-01-20 21:14:24,133 INFO L168 Benchmark]: TraceAbstraction took 9340.86 ms. Allocated memory was 306.2 MB in the beginning and 3.6 GB in the end (delta: 3.3 GB). Free memory was 284.0 MB in the beginning and 3.1 GB in the end (delta: -2.8 GB). Peak memory consumption was 475.9 MB. Max. memory is 16.0 GB. [2021-01-20 21:14:24,137 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 306.2 MB. Free memory was 277.4 MB in the beginning and 277.3 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 694.68 ms. Allocated memory is still 306.2 MB. Free memory was 280.4 MB in the beginning and 270.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 51.47 ms. Allocated memory is still 306.2 MB. Free memory was 270.1 MB in the beginning and 268.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.98 ms. Allocated memory is still 306.2 MB. Free memory was 268.0 MB in the beginning and 266.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 695.71 ms. Allocated memory is still 306.2 MB. Free memory was 266.7 MB in the beginning and 284.0 MB in the end (delta: -17.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 9340.86 ms. Allocated memory was 306.2 MB in the beginning and 3.6 GB in the end (delta: 3.3 GB). Free memory was 284.0 MB in the beginning and 3.1 GB in the end (delta: -2.8 GB). Peak memory consumption was 475.9 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, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.1s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 1295 SDtfs, 2011 SDslu, 4373 SDs, 0 SdLazy, 493 SolverSat, 81 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61275occurred in iteration=5, 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, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 528 NumberOfCodeBlocks, 528 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 517 ConstructedInterpolants, 0 QuantifiedInterpolants, 63591 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...