/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-wmm/safe020_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 13:42:53,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 13:42:53,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 13:42:53,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 13:42:53,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 13:42:53,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 13:42:53,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 13:42:53,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 13:42:53,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 13:42:53,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 13:42:53,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 13:42:53,958 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 13:42:53,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 13:42:53,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 13:42:53,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 13:42:53,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 13:42:53,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 13:42:53,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 13:42:53,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 13:42:53,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 13:42:53,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 13:42:53,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 13:42:53,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 13:42:53,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 13:42:53,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 13:42:53,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 13:42:53,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 13:42:53,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 13:42:54,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 13:42:54,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 13:42:54,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 13:42:54,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 13:42:54,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 13:42:54,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 13:42:54,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 13:42:54,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 13:42:54,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 13:42:54,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 13:42:54,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 13:42:54,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 13:42:54,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 13:42:54,011 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 13:42:54,039 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 13:42:54,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 13:42:54,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 13:42:54,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 13:42:54,042 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 13:42:54,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 13:42:54,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 13:42:54,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 13:42:54,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 13:42:54,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 13:42:54,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 13:42:54,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 13:42:54,044 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 13:42:54,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 13:42:54,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 13:42:54,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 13:42:54,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 13:42:54,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:42:54,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 13:42:54,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 13:42:54,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 13:42:54,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 13:42:54,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 13:42:54,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 13:42:54,046 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 13:42:54,047 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-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 13:42:54,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 13:42:54,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 13:42:54,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 13:42:54,510 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 13:42:54,511 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 13:42:54,511 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe020_pso.opt.i [2020-12-23 13:42:54,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/ea90330b6/293495416a124d1fb2540e44652b2692/FLAG5a38fa1b2 [2020-12-23 13:42:55,419 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 13:42:55,419 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_pso.opt.i [2020-12-23 13:42:55,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/ea90330b6/293495416a124d1fb2540e44652b2692/FLAG5a38fa1b2 [2020-12-23 13:42:55,624 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/ea90330b6/293495416a124d1fb2540e44652b2692 [2020-12-23 13:42:55,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 13:42:55,631 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 13:42:55,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 13:42:55,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 13:42:55,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 13:42:55,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:42:55" (1/1) ... [2020-12-23 13:42:55,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@620cbef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:55, skipping insertion in model container [2020-12-23 13:42:55,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:42:55" (1/1) ... [2020-12-23 13:42:55,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 13:42:55,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 13:42:55,887 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_pso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2020-12-23 13:42:56,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:42:56,201 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 13:42:56,229 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_pso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2020-12-23 13:42:56,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:42:56,530 INFO L208 MainTranslator]: Completed translation [2020-12-23 13:42:56,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:56 WrapperNode [2020-12-23 13:42:56,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 13:42:56,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 13:42:56,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 13:42:56,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 13:42:56,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:56" (1/1) ... [2020-12-23 13:42:56,566 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:56" (1/1) ... [2020-12-23 13:42:56,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 13:42:56,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 13:42:56,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 13:42:56,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 13:42:56,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:56" (1/1) ... [2020-12-23 13:42:56,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:56" (1/1) ... [2020-12-23 13:42:56,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:56" (1/1) ... [2020-12-23 13:42:56,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:56" (1/1) ... [2020-12-23 13:42:56,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:56" (1/1) ... [2020-12-23 13:42:56,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:56" (1/1) ... [2020-12-23 13:42:56,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:56" (1/1) ... [2020-12-23 13:42:56,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 13:42:56,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 13:42:56,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 13:42:56,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 13:42:56,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:42:56,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 13:42:56,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-23 13:42:56,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 13:42:56,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 13:42:56,728 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-23 13:42:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-23 13:42:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-23 13:42:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-23 13:42:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-23 13:42:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-23 13:42:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 13:42:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-23 13:42:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 13:42:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 13:42:56,732 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-23 13:42:57,254 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 13:42:57,255 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-23 13:42:57,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:42:57 BoogieIcfgContainer [2020-12-23 13:42:57,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 13:42:57,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 13:42:57,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 13:42:57,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 13:42:57,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:42:55" (1/3) ... [2020-12-23 13:42:57,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a4e5b6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:42:57, skipping insertion in model container [2020-12-23 13:42:57,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:42:56" (2/3) ... [2020-12-23 13:42:57,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a4e5b6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:42:57, skipping insertion in model container [2020-12-23 13:42:57,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:42:57" (3/3) ... [2020-12-23 13:42:57,266 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_pso.opt.i [2020-12-23 13:42:57,273 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-23 13:42:57,274 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 13:42:57,279 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 13:42:57,280 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-23 13:42:57,324 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,325 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,325 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,325 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,326 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,326 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,326 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,326 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,327 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,327 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,327 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,328 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,328 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,328 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,329 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,329 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,329 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,329 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,330 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,330 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,330 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,330 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,331 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,331 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,331 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,332 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,332 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,332 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,332 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,333 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,333 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,333 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,334 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,334 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,334 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,334 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,337 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,337 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,338 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,338 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,344 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,344 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,344 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,345 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,348 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,348 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,349 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,349 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:42:57,352 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-23 13:42:57,373 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-23 13:42:57,399 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:42:57,400 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:42:57,400 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:42:57,400 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:42:57,400 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:42:57,400 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:42:57,401 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:42:57,401 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:42:57,416 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:42:57,419 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 73 transitions, 161 flow [2020-12-23 13:42:57,422 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 73 transitions, 161 flow [2020-12-23 13:42:57,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2020-12-23 13:42:57,474 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2020-12-23 13:42:57,474 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-23 13:42:57,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-12-23 13:42:57,482 INFO L116 LiptonReduction]: Number of co-enabled transitions 1212 [2020-12-23 13:43:01,610 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-12-23 13:43:01,811 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-12-23 13:43:02,469 WARN L197 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-23 13:43:02,642 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-12-23 13:43:03,017 WARN L197 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-23 13:43:03,179 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-12-23 13:43:03,413 INFO L131 LiptonReduction]: Checked pairs total: 2226 [2020-12-23 13:43:03,413 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-12-23 13:43:03,433 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-12-23 13:43:03,456 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-12-23 13:43:03,458 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-12-23 13:43:03,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 13:43:03,466 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:43:03,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:43:03,467 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:43:03,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:43:03,474 INFO L82 PathProgramCache]: Analyzing trace with hash -938351108, now seen corresponding path program 1 times [2020-12-23 13:43:03,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:43:03,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865269275] [2020-12-23 13:43:03,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:43:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:43:03,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:43:03,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865269275] [2020-12-23 13:43:03,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:43:03,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-23 13:43:03,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740894877] [2020-12-23 13:43:03,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:43:03,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:43:03,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:43:03,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:43:03,848 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-12-23 13:43:03,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:43:03,913 INFO L93 Difference]: Finished difference Result 316 states and 835 transitions. [2020-12-23 13:43:03,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:43:03,915 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-23 13:43:03,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:43:03,931 INFO L225 Difference]: With dead ends: 316 [2020-12-23 13:43:03,931 INFO L226 Difference]: Without dead ends: 205 [2020-12-23 13:43:03,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:43:03,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-12-23 13:43:03,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 187. [2020-12-23 13:43:03,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-12-23 13:43:03,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 485 transitions. [2020-12-23 13:43:04,001 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 485 transitions. Word has length 8 [2020-12-23 13:43:04,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:43:04,002 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 485 transitions. [2020-12-23 13:43:04,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:43:04,002 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 485 transitions. [2020-12-23 13:43:04,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 13:43:04,004 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:43:04,004 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:43:04,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 13:43:04,004 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:43:04,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:43:04,005 INFO L82 PathProgramCache]: Analyzing trace with hash 395784729, now seen corresponding path program 1 times [2020-12-23 13:43:04,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:43:04,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603799900] [2020-12-23 13:43:04,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:43:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:43:04,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:43:04,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603799900] [2020-12-23 13:43:04,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:43:04,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:43:04,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608318850] [2020-12-23 13:43:04,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:43:04,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:43:04,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:43:04,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:43:04,122 INFO L87 Difference]: Start difference. First operand 187 states and 485 transitions. Second operand 4 states. [2020-12-23 13:43:04,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:43:04,168 INFO L93 Difference]: Finished difference Result 196 states and 488 transitions. [2020-12-23 13:43:04,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:43:04,168 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-23 13:43:04,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:43:04,173 INFO L225 Difference]: With dead ends: 196 [2020-12-23 13:43:04,173 INFO L226 Difference]: Without dead ends: 196 [2020-12-23 13:43:04,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:43:04,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-12-23 13:43:04,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 178. [2020-12-23 13:43:04,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-12-23 13:43:04,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 455 transitions. [2020-12-23 13:43:04,213 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 455 transitions. Word has length 9 [2020-12-23 13:43:04,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:43:04,215 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 455 transitions. [2020-12-23 13:43:04,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:43:04,216 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 455 transitions. [2020-12-23 13:43:04,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 13:43:04,217 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:43:04,217 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:43:04,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 13:43:04,217 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:43:04,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:43:04,224 INFO L82 PathProgramCache]: Analyzing trace with hash 975885903, now seen corresponding path program 1 times [2020-12-23 13:43:04,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:43:04,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551556735] [2020-12-23 13:43:04,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:43:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:43:04,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:43:04,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551556735] [2020-12-23 13:43:04,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:43:04,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:43:04,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330312045] [2020-12-23 13:43:04,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:43:04,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:43:04,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:43:04,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:43:04,314 INFO L87 Difference]: Start difference. First operand 178 states and 455 transitions. Second operand 4 states. [2020-12-23 13:43:04,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:43:04,343 INFO L93 Difference]: Finished difference Result 187 states and 464 transitions. [2020-12-23 13:43:04,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:43:04,345 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-23 13:43:04,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:43:04,347 INFO L225 Difference]: With dead ends: 187 [2020-12-23 13:43:04,347 INFO L226 Difference]: Without dead ends: 187 [2020-12-23 13:43:04,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:43:04,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-12-23 13:43:04,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 169. [2020-12-23 13:43:04,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-12-23 13:43:04,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 431 transitions. [2020-12-23 13:43:04,370 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 431 transitions. Word has length 9 [2020-12-23 13:43:04,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:43:04,370 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 431 transitions. [2020-12-23 13:43:04,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:43:04,370 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 431 transitions. [2020-12-23 13:43:04,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 13:43:04,373 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:43:04,374 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:43:04,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 13:43:04,374 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:43:04,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:43:04,375 INFO L82 PathProgramCache]: Analyzing trace with hash -615576110, now seen corresponding path program 1 times [2020-12-23 13:43:04,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:43:04,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661878512] [2020-12-23 13:43:04,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:43:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:43:04,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:43:04,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661878512] [2020-12-23 13:43:04,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:43:04,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:43:04,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262136537] [2020-12-23 13:43:04,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:43:04,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:43:04,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:43:04,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:43:04,440 INFO L87 Difference]: Start difference. First operand 169 states and 431 transitions. Second operand 4 states. [2020-12-23 13:43:04,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:43:04,492 INFO L93 Difference]: Finished difference Result 209 states and 515 transitions. [2020-12-23 13:43:04,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:43:04,493 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-23 13:43:04,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:43:04,495 INFO L225 Difference]: With dead ends: 209 [2020-12-23 13:43:04,495 INFO L226 Difference]: Without dead ends: 197 [2020-12-23 13:43:04,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:43:04,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-12-23 13:43:04,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 175. [2020-12-23 13:43:04,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-12-23 13:43:04,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 446 transitions. [2020-12-23 13:43:04,507 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 446 transitions. Word has length 10 [2020-12-23 13:43:04,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:43:04,508 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 446 transitions. [2020-12-23 13:43:04,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:43:04,508 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 446 transitions. [2020-12-23 13:43:04,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 13:43:04,510 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:43:04,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:43:04,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 13:43:04,510 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:43:04,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:43:04,511 INFO L82 PathProgramCache]: Analyzing trace with hash 187690604, now seen corresponding path program 2 times [2020-12-23 13:43:04,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:43:04,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387750817] [2020-12-23 13:43:04,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:43:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:43:04,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:43:04,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387750817] [2020-12-23 13:43:04,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:43:04,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:43:04,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553433096] [2020-12-23 13:43:04,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:43:04,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:43:04,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:43:04,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:43:04,585 INFO L87 Difference]: Start difference. First operand 175 states and 446 transitions. Second operand 5 states. [2020-12-23 13:43:04,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:43:04,643 INFO L93 Difference]: Finished difference Result 234 states and 564 transitions. [2020-12-23 13:43:04,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:43:04,645 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-23 13:43:04,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:43:04,646 INFO L225 Difference]: With dead ends: 234 [2020-12-23 13:43:04,646 INFO L226 Difference]: Without dead ends: 144 [2020-12-23 13:43:04,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:43:04,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-12-23 13:43:04,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 132. [2020-12-23 13:43:04,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-12-23 13:43:04,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 315 transitions. [2020-12-23 13:43:04,653 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 315 transitions. Word has length 10 [2020-12-23 13:43:04,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:43:04,653 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 315 transitions. [2020-12-23 13:43:04,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:43:04,654 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 315 transitions. [2020-12-23 13:43:04,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-23 13:43:04,655 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:43:04,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:43:04,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 13:43:04,655 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:43:04,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:43:04,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1342775669, now seen corresponding path program 1 times [2020-12-23 13:43:04,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:43:04,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704528409] [2020-12-23 13:43:04,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:43:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:43:04,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:43:04,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704528409] [2020-12-23 13:43:04,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:43:04,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:43:04,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420597751] [2020-12-23 13:43:04,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:43:04,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:43:04,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:43:04,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:43:04,733 INFO L87 Difference]: Start difference. First operand 132 states and 315 transitions. Second operand 4 states. [2020-12-23 13:43:04,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:43:04,785 INFO L93 Difference]: Finished difference Result 155 states and 339 transitions. [2020-12-23 13:43:04,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:43:04,785 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-23 13:43:04,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:43:04,787 INFO L225 Difference]: With dead ends: 155 [2020-12-23 13:43:04,787 INFO L226 Difference]: Without dead ends: 115 [2020-12-23 13:43:04,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:43:04,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-23 13:43:04,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-12-23 13:43:04,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-23 13:43:04,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 251 transitions. [2020-12-23 13:43:04,792 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 251 transitions. Word has length 11 [2020-12-23 13:43:04,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:43:04,793 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 251 transitions. [2020-12-23 13:43:04,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:43:04,793 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 251 transitions. [2020-12-23 13:43:04,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 13:43:04,794 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:43:04,794 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:43:04,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 13:43:04,794 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:43:04,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:43:04,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1283997363, now seen corresponding path program 1 times [2020-12-23 13:43:04,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:43:04,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356796648] [2020-12-23 13:43:04,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:43:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:43:04,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:43:04,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356796648] [2020-12-23 13:43:04,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:43:04,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:43:04,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944209984] [2020-12-23 13:43:04,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:43:04,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:43:04,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:43:04,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:43:04,882 INFO L87 Difference]: Start difference. First operand 115 states and 251 transitions. Second operand 5 states. [2020-12-23 13:43:04,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:43:04,953 INFO L93 Difference]: Finished difference Result 116 states and 234 transitions. [2020-12-23 13:43:04,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:43:04,954 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-23 13:43:04,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:43:04,956 INFO L225 Difference]: With dead ends: 116 [2020-12-23 13:43:04,956 INFO L226 Difference]: Without dead ends: 89 [2020-12-23 13:43:04,956 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:43:04,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-12-23 13:43:04,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-12-23 13:43:04,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-12-23 13:43:04,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 176 transitions. [2020-12-23 13:43:04,960 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 176 transitions. Word has length 12 [2020-12-23 13:43:04,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:43:04,961 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 176 transitions. [2020-12-23 13:43:04,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:43:04,961 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 176 transitions. [2020-12-23 13:43:04,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-23 13:43:04,961 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:43:04,962 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:43:04,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 13:43:04,962 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:43:04,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:43:04,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1633997476, now seen corresponding path program 1 times [2020-12-23 13:43:04,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:43:04,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990500954] [2020-12-23 13:43:04,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:43:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:43:05,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:43:05,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990500954] [2020-12-23 13:43:05,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:43:05,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:43:05,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274045914] [2020-12-23 13:43:05,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 13:43:05,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:43:05,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 13:43:05,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:43:05,094 INFO L87 Difference]: Start difference. First operand 89 states and 176 transitions. Second operand 6 states. [2020-12-23 13:43:05,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:43:05,176 INFO L93 Difference]: Finished difference Result 85 states and 166 transitions. [2020-12-23 13:43:05,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 13:43:05,178 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-23 13:43:05,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:43:05,179 INFO L225 Difference]: With dead ends: 85 [2020-12-23 13:43:05,179 INFO L226 Difference]: Without dead ends: 50 [2020-12-23 13:43:05,185 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:43:05,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-23 13:43:05,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2020-12-23 13:43:05,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-12-23 13:43:05,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 83 transitions. [2020-12-23 13:43:05,188 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 83 transitions. Word has length 14 [2020-12-23 13:43:05,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:43:05,188 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 83 transitions. [2020-12-23 13:43:05,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 13:43:05,188 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 83 transitions. [2020-12-23 13:43:05,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-23 13:43:05,189 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:43:05,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:43:05,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 13:43:05,189 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:43:05,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:43:05,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1390745954, now seen corresponding path program 1 times [2020-12-23 13:43:05,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:43:05,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787241630] [2020-12-23 13:43:05,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:43:05,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:43:05,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:43:05,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787241630] [2020-12-23 13:43:05,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:43:05,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:43:05,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953882530] [2020-12-23 13:43:05,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:43:05,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:43:05,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:43:05,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:43:05,270 INFO L87 Difference]: Start difference. First operand 46 states and 83 transitions. Second operand 3 states. [2020-12-23 13:43:05,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:43:05,282 INFO L93 Difference]: Finished difference Result 59 states and 104 transitions. [2020-12-23 13:43:05,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:43:05,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-12-23 13:43:05,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:43:05,285 INFO L225 Difference]: With dead ends: 59 [2020-12-23 13:43:05,285 INFO L226 Difference]: Without dead ends: 33 [2020-12-23 13:43:05,286 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:43:05,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-23 13:43:05,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-12-23 13:43:05,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-23 13:43:05,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-12-23 13:43:05,288 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 16 [2020-12-23 13:43:05,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:43:05,289 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-12-23 13:43:05,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:43:05,289 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-12-23 13:43:05,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-23 13:43:05,289 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:43:05,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:43:05,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 13:43:05,290 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:43:05,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:43:05,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1414383408, now seen corresponding path program 2 times [2020-12-23 13:43:05,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:43:05,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059766702] [2020-12-23 13:43:05,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:43:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:43:05,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:43:05,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059766702] [2020-12-23 13:43:05,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:43:05,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:43:05,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461868093] [2020-12-23 13:43:05,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:43:05,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:43:05,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:43:05,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:43:05,397 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 4 states. [2020-12-23 13:43:05,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:43:05,415 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-12-23 13:43:05,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:43:05,415 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-23 13:43:05,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:43:05,416 INFO L225 Difference]: With dead ends: 32 [2020-12-23 13:43:05,416 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 13:43:05,416 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:43:05,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 13:43:05,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 13:43:05,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 13:43:05,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 13:43:05,417 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-12-23 13:43:05,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:43:05,417 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 13:43:05,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:43:05,417 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 13:43:05,418 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 13:43:05,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 13:43:05,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:43:05 BasicIcfg [2020-12-23 13:43:05,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 13:43:05,422 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 13:43:05,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 13:43:05,423 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 13:43:05,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:42:57" (3/4) ... [2020-12-23 13:43:05,428 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 13:43:05,437 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-23 13:43:05,437 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-23 13:43:05,437 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-23 13:43:05,444 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-23 13:43:05,444 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 13:43:05,444 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:43:05,444 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:43:05,488 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe020_pso.opt.i-witness.graphml [2020-12-23 13:43:05,488 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 13:43:05,489 INFO L168 Benchmark]: Toolchain (without parser) took 9858.65 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 124.9 MB in the beginning and 130.1 MB in the end (delta: -5.3 MB). Peak memory consumption was 33.5 MB. Max. memory is 8.0 GB. [2020-12-23 13:43:05,490 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:43:05,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 896.50 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 126.2 MB in the end (delta: -1.6 MB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:43:05,491 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.76 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 124.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:43:05,492 INFO L168 Benchmark]: Boogie Preprocessor took 30.57 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 122.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:43:05,493 INFO L168 Benchmark]: RCFGBuilder took 634.54 ms. Allocated memory is still 151.0 MB. Free memory was 122.5 MB in the beginning and 100.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:43:05,493 INFO L168 Benchmark]: TraceAbstraction took 8162.83 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 100.5 MB in the beginning and 133.3 MB in the end (delta: -32.8 MB). Peak memory consumption was 5.5 MB. Max. memory is 8.0 GB. [2020-12-23 13:43:05,494 INFO L168 Benchmark]: Witness Printer took 65.92 ms. Allocated memory is still 188.7 MB. Free memory was 133.3 MB in the beginning and 130.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:43:05,498 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 896.50 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 126.2 MB in the end (delta: -1.6 MB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 56.76 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 124.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.57 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 122.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 634.54 ms. Allocated memory is still 151.0 MB. Free memory was 122.5 MB in the beginning and 100.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8162.83 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 100.5 MB in the beginning and 133.3 MB in the end (delta: -32.8 MB). Peak memory consumption was 5.5 MB. Max. memory is 8.0 GB. * Witness Printer took 65.92 ms. Allocated memory is still 188.7 MB. Free memory was 133.3 MB in the beginning and 130.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 727 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 40 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.9s, 81 PlacesBefore, 30 PlacesAfterwards, 73 TransitionsBefore, 20 TransitionsAfterwards, 1212 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 2226 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.0s, HoareTripleCheckerStatistics: 166 SDtfs, 180 SDslu, 215 SDs, 0 SdLazy, 126 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 92 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 4619 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...