/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/safe031_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:25:42,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:25:42,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:25:42,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:25:42,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:25:42,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:25:42,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:25:42,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:25:42,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:25:42,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:25:42,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:25:42,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:25:42,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:25:42,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:25:42,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:25:42,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:25:42,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:25:42,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:25:42,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:25:42,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:25:42,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:25:42,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:25:42,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:25:42,579 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:25:42,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 21:25:42,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 21:25:42,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 21:25:42,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 21:25:42,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 21:25:42,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 21:25:42,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:25:42,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:25:42,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:25:42,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:25:42,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:25:42,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:25:42,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:25:42,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:25:42,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:25:42,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:25:42,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:25:42,595 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 21:25:42,621 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:25:42,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:25:42,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:25:42,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:25:42,624 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:25:42,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:25:42,624 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:25:42,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:25:42,625 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:25:42,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:25:42,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:25:42,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:25:42,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:25:42,626 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:25:42,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:25:42,626 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:25:42,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:25:42,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:25:42,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:25:42,627 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:25:42,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:25:42,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:25:42,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:25:42,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:25:42,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:25:42,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:25:42,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:25:42,629 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:25:42,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:25:42,629 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:25:42,630 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:25:42,630 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:25:43,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:25:43,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:25:43,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:25:43,084 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:25:43,085 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:25:43,087 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i [2021-01-20 21:25:43,176 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c8dcbf2c/374270972cba4a5eb2a21a56bff24465/FLAG42fba0f0b [2021-01-20 21:25:44,013 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:25:44,014 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i [2021-01-20 21:25:44,034 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c8dcbf2c/374270972cba4a5eb2a21a56bff24465/FLAG42fba0f0b [2021-01-20 21:25:44,261 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c8dcbf2c/374270972cba4a5eb2a21a56bff24465 [2021-01-20 21:25:44,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:25:44,266 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:25:44,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:25:44,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:25:44,276 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:25:44,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:25:44" (1/1) ... [2021-01-20 21:25:44,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d926e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:25:44, skipping insertion in model container [2021-01-20 21:25:44,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:25:44" (1/1) ... [2021-01-20 21:25:44,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:25:44,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:25:44,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:25:44,759 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:25:44,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:25:44,966 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:25:44,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:25:44 WrapperNode [2021-01-20 21:25:44,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:25:44,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:25:44,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:25:44,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:25:44,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:25:44" (1/1) ... [2021-01-20 21:25:44,999 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:25:44" (1/1) ... [2021-01-20 21:25:45,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:25:45,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:25:45,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:25:45,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:25:45,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:25:44" (1/1) ... [2021-01-20 21:25:45,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:25:44" (1/1) ... [2021-01-20 21:25:45,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:25:44" (1/1) ... [2021-01-20 21:25:45,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:25:44" (1/1) ... [2021-01-20 21:25:45,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:25:44" (1/1) ... [2021-01-20 21:25:45,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:25:44" (1/1) ... [2021-01-20 21:25:45,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:25:44" (1/1) ... [2021-01-20 21:25:45,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:25:45,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:25:45,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:25:45,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:25:45,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:25:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:25:45,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:25:45,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:25:45,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:25:45,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:25:45,201 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:25:45,201 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:25:45,202 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:25:45,202 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:25:45,202 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 21:25:45,202 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 21:25:45,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:25:45,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:25:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:25:45,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:25:45,205 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 21:25:45,791 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:25:45,791 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 21:25:45,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:25:45 BoogieIcfgContainer [2021-01-20 21:25:45,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:25:45,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:25:45,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:25:45,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:25:45,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:25:44" (1/3) ... [2021-01-20 21:25:45,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74edd05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:25:45, skipping insertion in model container [2021-01-20 21:25:45,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:25:44" (2/3) ... [2021-01-20 21:25:45,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74edd05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:25:45, skipping insertion in model container [2021-01-20 21:25:45,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:25:45" (3/3) ... [2021-01-20 21:25:45,805 INFO L111 eAbstractionObserver]: Analyzing ICFG safe031_tso.opt.i [2021-01-20 21:25:45,821 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:25:45,821 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:25:45,825 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 21:25:45,827 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:25:45,875 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,875 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,875 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,875 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,876 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,876 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,876 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,876 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,877 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,877 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,877 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,877 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,879 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,879 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,880 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,880 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,880 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,880 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,881 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,882 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,883 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,883 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,883 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,885 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,885 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,886 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,886 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,887 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,888 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,889 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,889 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,898 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,899 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,899 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,899 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,904 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,904 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,904 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,904 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,907 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,907 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,908 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,908 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:25:45,910 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:25:45,923 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 21:25:45,948 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:25:45,948 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:25:45,948 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:25:45,948 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:25:45,948 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:25:45,949 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:25:45,949 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:25:45,949 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:25:45,961 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 78 transitions, 171 flow [2021-01-20 21:25:46,803 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 21:25:46,845 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 21:25:46,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-01-20 21:25:46,920 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:25:46,921 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 21:25:46,921 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:25:46,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:25:46,929 INFO L82 PathProgramCache]: Analyzing trace with hash 557790116, now seen corresponding path program 1 times [2021-01-20 21:25:46,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:25:46,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360440053] [2021-01-20 21:25:46,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:25:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:25:47,599 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 21:25:47,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360440053] [2021-01-20 21:25:47,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:25:47,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:25:47,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463469660] [2021-01-20 21:25:47,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:25:47,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:25:47,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:25:47,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:25:47,670 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 21:25:48,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:25:48,144 INFO L93 Difference]: Finished difference Result 13207 states and 46043 transitions. [2021-01-20 21:25:48,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:25:48,146 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 21:25:48,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:25:48,149 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 21:25:48,149 INFO L78 Accepts]: Start accepts. Automaton has 13207 states and 46043 transitions. Word has length 41 [2021-01-20 21:25:48,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:25:48,151 INFO L481 AbstractCegarLoop]: Abstraction has 13207 states and 46043 transitions. [2021-01-20 21:25:48,151 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 21:25:48,152 INFO L276 IsEmpty]: Start isEmpty. Operand 13207 states and 46043 transitions. [2021-01-20 21:25:48,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-01-20 21:25:48,169 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:25:48,170 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 21:25:48,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:25:48,170 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:25:48,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:25:48,171 INFO L82 PathProgramCache]: Analyzing trace with hash -264049339, now seen corresponding path program 1 times [2021-01-20 21:25:48,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:25:48,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380349434] [2021-01-20 21:25:48,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:25:48,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:25:48,334 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 21:25:48,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380349434] [2021-01-20 21:25:48,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:25:48,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:25:48,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337535572] [2021-01-20 21:25:48,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:25:48,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:25:48,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:25:48,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:25:48,339 INFO L87 Difference]: Start difference. First operand 13207 states and 46043 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 21:25:48,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:25:48,857 INFO L93 Difference]: Finished difference Result 20311 states and 70411 transitions. [2021-01-20 21:25:48,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:25:48,858 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 21:25:48,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:25:48,859 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 21:25:48,860 INFO L78 Accepts]: Start accepts. Automaton has 20311 states and 70411 transitions. Word has length 43 [2021-01-20 21:25:48,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:25:48,860 INFO L481 AbstractCegarLoop]: Abstraction has 20311 states and 70411 transitions. [2021-01-20 21:25:48,861 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 21:25:48,861 INFO L276 IsEmpty]: Start isEmpty. Operand 20311 states and 70411 transitions. [2021-01-20 21:25:48,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-20 21:25:48,898 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:25:48,899 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 21:25:48,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:25:48,899 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:25:48,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:25:48,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1775680141, now seen corresponding path program 1 times [2021-01-20 21:25:48,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:25:48,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225180226] [2021-01-20 21:25:48,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:25:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:25:49,180 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 21:25:49,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225180226] [2021-01-20 21:25:49,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:25:49,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:25:49,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813956314] [2021-01-20 21:25:49,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:25:49,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:25:49,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:25:49,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:25:49,183 INFO L87 Difference]: Start difference. First operand 20311 states and 70411 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 21:25:49,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:25:49,829 INFO L93 Difference]: Finished difference Result 31567 states and 108017 transitions. [2021-01-20 21:25:49,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:25:49,830 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 21:25:49,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:25:49,831 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 21:25:49,831 INFO L78 Accepts]: Start accepts. Automaton has 31567 states and 108017 transitions. Word has length 44 [2021-01-20 21:25:49,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:25:49,833 INFO L481 AbstractCegarLoop]: Abstraction has 31567 states and 108017 transitions. [2021-01-20 21:25:49,833 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 21:25:49,833 INFO L276 IsEmpty]: Start isEmpty. Operand 31567 states and 108017 transitions. [2021-01-20 21:25:49,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-20 21:25:49,956 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:25:49,956 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] [2021-01-20 21:25:49,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:25:49,957 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:25:49,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:25:49,959 INFO L82 PathProgramCache]: Analyzing trace with hash 397387748, now seen corresponding path program 1 times [2021-01-20 21:25:49,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:25:49,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862737829] [2021-01-20 21:25:49,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:25:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:25:50,124 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 21:25:50,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862737829] [2021-01-20 21:25:50,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:25:50,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:25:50,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153023189] [2021-01-20 21:25:50,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:25:50,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:25:50,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:25:50,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:25:50,131 INFO L87 Difference]: Start difference. First operand 31567 states and 108017 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 21:25:50,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:25:50,552 INFO L93 Difference]: Finished difference Result 20700 states and 68835 transitions. [2021-01-20 21:25:50,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 21:25:50,553 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2021-01-20 21:25:50,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:25:50,554 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:25:50,554 INFO L78 Accepts]: Start accepts. Automaton has 20700 states and 68835 transitions. Word has length 45 [2021-01-20 21:25:50,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:25:50,555 INFO L481 AbstractCegarLoop]: Abstraction has 20700 states and 68835 transitions. [2021-01-20 21:25:50,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 21:25:50,556 INFO L276 IsEmpty]: Start isEmpty. Operand 20700 states and 68835 transitions. [2021-01-20 21:25:50,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 21:25:50,606 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:25:50,607 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 21:25:50,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:25:50,607 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:25:50,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:25:50,608 INFO L82 PathProgramCache]: Analyzing trace with hash 214594115, now seen corresponding path program 1 times [2021-01-20 21:25:50,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:25:50,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006754284] [2021-01-20 21:25:50,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:25:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:25:50,748 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 21:25:50,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006754284] [2021-01-20 21:25:50,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:25:50,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:25:50,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388645758] [2021-01-20 21:25:50,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:25:50,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:25:50,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:25:50,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:25:50,752 INFO L87 Difference]: Start difference. First operand 20700 states and 68835 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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 21:25:51,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:25:51,165 INFO L93 Difference]: Finished difference Result 11925 states and 38523 transitions. [2021-01-20 21:25:51,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:25:51,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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 21:25:51,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:25:51,166 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:25:51,167 INFO L78 Accepts]: Start accepts. Automaton has 11925 states and 38523 transitions. Word has length 47 [2021-01-20 21:25:51,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:25:51,167 INFO L481 AbstractCegarLoop]: Abstraction has 11925 states and 38523 transitions. [2021-01-20 21:25:51,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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 21:25:51,167 INFO L276 IsEmpty]: Start isEmpty. Operand 11925 states and 38523 transitions. [2021-01-20 21:25:51,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-20 21:25:51,205 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:25:51,205 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 21:25:51,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:25:51,206 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:25:51,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:25:51,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1212397294, now seen corresponding path program 1 times [2021-01-20 21:25:51,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:25:51,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699992638] [2021-01-20 21:25:51,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:25:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:25:51,368 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 21:25:51,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699992638] [2021-01-20 21:25:51,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:25:51,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:25:51,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767930814] [2021-01-20 21:25:51,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:25:51,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:25:51,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:25:51,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:25:51,373 INFO L87 Difference]: Start difference. First operand 11925 states and 38523 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 21:25:51,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:25:51,714 INFO L93 Difference]: Finished difference Result 20419 states and 65088 transitions. [2021-01-20 21:25:51,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:25:51,714 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 21:25:51,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:25:51,715 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 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 21:25:51,715 INFO L78 Accepts]: Start accepts. Automaton has 20419 states and 65088 transitions. Word has length 49 [2021-01-20 21:25:51,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:25:51,716 INFO L481 AbstractCegarLoop]: Abstraction has 20419 states and 65088 transitions. [2021-01-20 21:25:51,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 21:25:51,716 INFO L276 IsEmpty]: Start isEmpty. Operand 20419 states and 65088 transitions. [2021-01-20 21:25:51,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-20 21:25:51,771 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:25:51,772 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:25:51,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 21:25:51,772 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:25:51,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:25:51,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1431291322, now seen corresponding path program 1 times [2021-01-20 21:25:51,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:25:51,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749787153] [2021-01-20 21:25:51,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:25:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:25:51,894 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 21:25:51,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749787153] [2021-01-20 21:25:51,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:25:51,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 21:25:51,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486513649] [2021-01-20 21:25:51,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 21:25:51,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:25:51,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 21:25:51,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 21:25:51,897 INFO L87 Difference]: Start difference. First operand 20419 states and 65088 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 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 21:25:52,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:25:52,381 INFO L93 Difference]: Finished difference Result 12427 states and 39393 transitions. [2021-01-20 21:25:52,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-20 21:25:52,381 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 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 21:25:52,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:25:52,382 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 21:25:52,383 INFO L78 Accepts]: Start accepts. Automaton has 12427 states and 39393 transitions. Word has length 49 [2021-01-20 21:25:52,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:25:52,383 INFO L481 AbstractCegarLoop]: Abstraction has 12427 states and 39393 transitions. [2021-01-20 21:25:52,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 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 21:25:52,383 INFO L276 IsEmpty]: Start isEmpty. Operand 12427 states and 39393 transitions. [2021-01-20 21:25:52,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 21:25:52,416 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:25:52,416 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 21:25:52,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 21:25:52,417 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:25:52,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:25:52,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1425582298, now seen corresponding path program 1 times [2021-01-20 21:25:52,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:25:52,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677851744] [2021-01-20 21:25:52,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:25:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:25:52,525 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 21:25:52,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677851744] [2021-01-20 21:25:52,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:25:52,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:25:52,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783195168] [2021-01-20 21:25:52,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:25:52,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:25:52,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:25:52,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:25:52,528 INFO L87 Difference]: Start difference. First operand 12427 states and 39393 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 21:25:52,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:25:52,836 INFO L93 Difference]: Finished difference Result 18639 states and 58533 transitions. [2021-01-20 21:25:52,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:25:52,837 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 21:25:52,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:25:52,838 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 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 21:25:52,838 INFO L78 Accepts]: Start accepts. Automaton has 18639 states and 58533 transitions. Word has length 53 [2021-01-20 21:25:52,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:25:52,838 INFO L481 AbstractCegarLoop]: Abstraction has 18639 states and 58533 transitions. [2021-01-20 21:25:52,839 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 21:25:52,839 INFO L276 IsEmpty]: Start isEmpty. Operand 18639 states and 58533 transitions. [2021-01-20 21:25:52,912 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:25:52,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 21:25:52,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:25:52 BasicIcfg [2021-01-20 21:25:52,918 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:25:52,929 INFO L168 Benchmark]: Toolchain (without parser) took 8653.84 ms. Allocated memory was 302.0 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 277.1 MB in the beginning and 2.4 GB in the end (delta: -2.1 GB). Peak memory consumption was 280.7 MB. Max. memory is 16.0 GB. [2021-01-20 21:25:52,930 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 302.0 MB. Free memory was 271.9 MB in the beginning and 271.8 MB in the end (delta: 154.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:25:52,931 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.74 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 246.2 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-01-20 21:25:52,932 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.68 ms. Allocated memory is still 302.0 MB. Free memory was 246.2 MB in the beginning and 244.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:25:52,933 INFO L168 Benchmark]: Boogie Preprocessor took 31.01 ms. Allocated memory is still 302.0 MB. Free memory was 244.2 MB in the beginning and 242.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:25:52,933 INFO L168 Benchmark]: RCFGBuilder took 709.31 ms. Allocated memory is still 302.0 MB. Free memory was 285.6 MB in the beginning and 262.5 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:25:52,939 INFO L168 Benchmark]: TraceAbstraction took 7120.07 ms. Allocated memory was 302.0 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 262.5 MB in the beginning and 2.4 GB in the end (delta: -2.2 GB). Peak memory consumption was 265.7 MB. Max. memory is 16.0 GB. [2021-01-20 21:25:52,950 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 302.0 MB. Free memory was 271.9 MB in the beginning and 271.8 MB in the end (delta: 154.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 699.74 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 246.2 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 55.68 ms. Allocated memory is still 302.0 MB. Free memory was 246.2 MB in the beginning and 244.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 31.01 ms. Allocated memory is still 302.0 MB. Free memory was 244.2 MB in the beginning and 242.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 709.31 ms. Allocated memory is still 302.0 MB. Free memory was 285.6 MB in the beginning and 262.5 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7120.07 ms. Allocated memory was 302.0 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 262.5 MB in the beginning and 2.4 GB in the end (delta: -2.2 GB). Peak memory consumption was 265.7 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: 6.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 949 SDtfs, 1596 SDslu, 3135 SDs, 0 SdLazy, 320 SolverSat, 80 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31567occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 371 NumberOfCodeBlocks, 371 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 363 ConstructedInterpolants, 0 QuantifiedInterpolants, 42389 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...